The evolution of wire

“I am on the alert, sharpening my claws and fangs,” wrote the famous naturalist Thomas Huxley in a letter dated November 23, 1859, which he sent to Charles Darwin immediately after reading the first edition of The Origin of Species. With expressions of delight, Huxley says he expects attacks on Darwin’s book. A battle is being prepared for the theory of evolution, and the world is beginning to change irreversibly.

However, numerous other changes are on the horizon at that time. Just as the Neanderthals at first could hardly have guessed how the hairless and naked homo sapiens would become almost what it is today, in the middle of the 19th century, few people noticed how one branch of progress was slightly separated from the general flow of the so-called industrial revolution. One that would dominate the world 150 years later.

While Darwin and Huxley corresponded through the very efficient but inherently slow Royal Mail, railways were already spreading across the British countryside. They were followed closely by the first telegraph wires that were already being installed on both continents, in Europe and America. Two years later, in 1861, the first intercontinental telegraph line, which will follow the railroad across the American continent, will start operating.

The era of the telegraph, the dinosaur of communication, begins. Based on the idea of communication with signals, originating from antiquity, which after the Middle Ages would lead to communication with flags in the navy, and in France in the 18th century to sending signals with “semaphores”, the telegraph was the first means of communication by wire.

A series of electrical inventions at the beginning of the 19th century led to the development of the Morse telegraph, which began to be widely used in 1844. Efficient and simple, the telegraph is profitable enough for companies to compete in connecting the world with wires – creating the first global communications infrastructure. A map from 1901 shows the state of the world’s telegraph network 120 years ago.

At the end of the 20th century, the spread of wire communication will be recognized under the name “information revolution”, although, viewed from a historical distance, “evolution” is a somewhat more suitable name. In these external conditions, the letters are also slightly transformed. Messages are written faster. And they reach greater distances.

Over time, the telegraph will give birth, in direct descendants and parallel branches, to a whole series of genera and types of new technologies for transmitting messages – cables, telexes, telephone, radio communication, satellite communication and, finally, forms of communication based on optoelectronics and the Internet.

However, after 180 years since the introduction of the telegraph, it almost completely died out, which is not surprising when it comes to “evolution” – after a period of coexistence, under the pressure of selection, the ancestral species slowly disappear, leaving room for new, more perfect forms.

Johannes Gutenberg’s printing press

The telegraph enabled the development of modern media, as we know it today. Via the telegraph, police and newspaper reports arrived from afar and changed the history of modern journalism. Short, compelling news comes from correspondents almost in real time. The press manages to publish same-day or day-later reports on events that just happened on the other side of the world. This technological circumstance dramatically changes the role and even the importance of media, almost as much as Gutenberg’s press changed the role of the book.

Thanks to this, the telegraph introduced standards of communication and ways of conveying news that would persist even after its eventual disappearance at the end of the 20th century. Based on such a tradition, today numerous world magazines that announce the latest news via tweets or in “live blogs” have the word “telegraph” in their name. Traces of evolution, something like rudimentary organs in the human body.

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The Supercritical State: What Lies Beneath the Atmospheres of Two Neighboring Planets in the Solar System

Two planets orbiting a tiny star 218 light-years away appear to be unlike any other in the Solar System. Exoplanets Kepler-138c and Kepler-138d have a radius about 1.5 times that of Earth and appear to consist of thick, steamy atmospheres and incredibly deep oceans.

“We used to think that planets slightly larger than Earth were really big balls of metal and rock, like scaled-down versions of our planet, and that’s why we called them super-Earths,”

said astronomer Björn Benneke of the University of Montreal.

“However, these two planets, Kepler-138c and d, appear to be quite different from that concept: a large fraction of their volume is probably water.” “This is the first time we have observed planets that we can confidently say are water worlds of sorts,” he added.

How the composition of exoplanets is determined

Determining what planets outside the solar system, i.e. exoplanets, are made of usually requires a lot of “detective” work. They are very far away and very faint compared to the light of the stars they orbit. It’s very difficult to get direct pictures, and if we do take them, we don’t see a lot of detail in them.
Therefore, the composition of an exoplanet is usually determined on the basis of its density, which is calculated using two parameters – the drop in the brightness of the star during the transit of the planet and the radial velocity of the star, i.e. the so-called oscillation, writes “Science Alert”.

The amount of light blocked during transit indicates the exoplanet’s size, and the star’s radial velocity indicates its mass. Namely, the radial velocity is induced by the gravitational effect of the exoplanet on the star, so the mass of the planet can be determined through this. And once you have the size and mass of the object, you can calculate its density.

What is the density of exoplanets

Gaseous worlds, such as Jupiter, will have a relatively low density, and rocky, metal-rich worlds will have a higher density. At 5.5 grams per cubic centimeter, Earth is the densest planet in the Solar System; Saturn has the lowest density – 0.69 grams per cubic centimeter.
Transit data show that Kepler-138c and Kepler-138d have radii that are 1.51 times that of Earth, and their gravitational pull is twice as massive as our planet.
This means that their density is about 3.6 grams per cubic centimeter; which is between the rocky and gaseous worlds in density. Jupiter’s moon Europa has a similar density (3 grams per cubic centimeter), which is thought to hide a huge ocean under its icy crust.

“Imagine larger versions of Europa or Enceladus, the water-rich moons that orbit Jupiter and Saturn, but are much closer to their star.” “Instead of an icy surface, Kepler-138c and d is surrounded by water vapor,”

said astrophysicist Carolyn Piaulet of the University of Montreal.

Supercritical fluid

According to the expert’s model, more than 50 percent of the volume of these exoplanets is water, which extends to a depth of about 2,000 kilometers. Earth’s oceans, by comparison, have an average depth of 3.7 kilometers.
Kepler-138c and Kepler-138d are much closer to their star than Earth is to the Sun, so they are much hotter. One orbits the red dwarf in 13 days, and the other in 23 days. This means that the oceans and atmospheres there look completely different than on Earth.

“The temperature in the atmospheres of Kepler-138c and Kepler-138d is probably above the boiling point of water, so there seems to be a very dense atmosphere made of steam.” Beneath such an atmosphere is potentially liquid water at high pressure or even water in a second phase that occurs at high pressures, called a supercritical fluid.”

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Reduced number of animals used in scientific experiments

Last year, the European Commission published a report on the results of legislation aimed at protecting animals used in scientific research. The main goal of this directive from 2013 was to reduce the suffering animals are exposed to…

Statistics collected by the European Commission indicate that the number of animals used in research is declining. This is the first report since the introduction of stricter rules on the use of animals for research purposes seven years ago. According to the obtained data, 9.39 million animals were used for scientific purposes in 2017, which is less than in 2015, when the number was 9.59 million. Although in 2016 the number of animals in experiments was higher than a year earlier, as many as 9.82 million, the report speaks of a positive trend of reducing the use of animals in research.

In the last year for which there are data (2017), animals were used in basic research in 45 percent of cases, while in applied research they were represented in about 23 percent. Almost a quarter of the animals, also 23 percent, were involved in testing drugs and other chemicals, and the rest were used in the study of new types of vaccines, research into learning processes or forensic examinations.

More than 60 percent of all animals used for research in 2017 were mice, 12 percent rats, 13 percent fish, while the share of birds in experiments was 6 percent. Dogs, cats and non-human primates accounted for 0.3 percent of the total.
The law stipulates high standards when it comes to housing and care of animals, as well as testing methods that imply the least degree of pain and minimal use of animals.

Member countries were expected to send detailed data on animal experiments.

“This is the most comprehensive and precise approach to collecting and publishing data on experimental animals,”

emphasizes Stefan Troje from the German Primate Research Center in Göttingen.

He suggests it’s a model other countries should follow, though he notes the complex reporting requirements are a huge administrative burden for scientists and their organizations.

In addition to information on the number and types of animals used in scientific research, member states are now required to state how many times an animal has been used as a guinea pig, for what purpose, and how “cruel” the experimental procedure to which the animal was subjected was. The spokesperson of the European Commission believes that such detailed data “enables us to locate far more efficiently where resources should be directed in order to reduce the number of animals exposed to suffering”.

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Huge and significant success of scientists: Nuclear fusion could soon change the world, we are one step away from an “infinite source of energy”

For the first time in history, American scientists at the National Ignition Facility (NIF) at the Lawrence Livermore Laboratory in California have successfully produced a nuclear fusion reaction that resulted in the production of a net gain in energy, that is, more energy than they invested.
This was confirmed to CNN by a source familiar with the project, and the portal states that the US Department of Energy is expected to officially announce this breakthrough in science on Tuesday. The result of the experiment would be a huge step in the decades-long quest to unleash an infinite source of clean energy that could help end dependence on fossil fuels.

Fusion and fission

For decades, researchers have tried to recreate nuclear fusion, replicating the energy that powers the Sun. Namely, nuclear fusion is a process that replicates the same energy that powers the Sun. It happens when several atomic nuclei join together, forming one heavier nucleus. This process generates a huge amount of energy (depending on the mass of the nuclei involved in it) as heat. In contrast, nuclear fission is the process of splitting a larger atom into two or more smaller ones. It’s the kind of energy that powers nuclear reactors around the world today. As with fusion, the heat created by splitting atoms is also used to generate energy.

A glass of deuterium to power the house

Nuclear fusion does not carry the same safety risks, and the materials used to power it have a significantly shorter radioactive half-life than fission.

Scientists around the world have studied nuclear fusion for decades in hopes of recreating it with a new source that provides boundless energy without the carbon and nuclear waste made by current nuclear reactors. Fusion projects mainly use the elements deuterium and tritium, both isotopes of hydrogen.

Unlike coal, you only need a small amount of hydrogen, which is the most abundant in the universe. Hydrogen is found in water, so the things that generate this energy are wildly unlimited and clean – Julio Friedman, chief scientist of “Carbon Direct” and former chief energy technologist of the Lawrence Livermore Laboratory, told CNN.

How could nuclear fusion turn on the lights?

There are two main ways of generating nuclear fusion, but both have the same result. The fusion of two atoms creates a huge amount of heat, which is the key to energy production. That heat can be used to heat water, create steam, and turn a turbine to produce power – much like nuclear fission generates power.

The big challenge in “taming” fusion energy is keeping it going long enough to power power grids and heating systems around the globe. A successful American breakthrough on that front is a big deal, but it’s still far less than what’s needed to generate enough energy to run one power plant, let alone tens of thousands of them.

It is about what is needed to boil 10 kettles of water. To turn it into a power plant, we need to create a larger energy gain, significantly larger – Jeremy Chittenden, co-director of King’s College London’s Center for Inertial Fusion Studies, told CNN.

Next steps

Scientists and experts now need to figure out how to produce much more energy than nuclear fusion on a much larger scale. At the same time, they need to figure out how to reduce the cost of nuclear fusion so that it can be used commercially.

Scientists will also need to harvest the energy produced by fusion and transfer it to the power grid as electricity. It will take years and possibly decades before fusion can produce unlimited amounts of clean energy, while scientists are in a race against time in the fight against climate change.

This will not meaningfully contribute to the reduction of harmful gases in the next 20-30 years. This is the difference between lighting a match and building a gas turbine – said Friedman.

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Do you know why we twitch before falling asleep?


You snuggled into bed after a hard day and began to drift off to sleep…

However, you suddenly wince because you feel like you’ve started to fall. What causes this phenomenon?
This question is one of the most frequently asked on google.com, so all the curious can find out the answer here.

The unusual sudden movement is related to a phenomenon called the hypnagogic state, which is a transitional period between waking and sleep. Accordingly, the twitch is called a hypnagogic twitch.

It is about myoclonus, that is, fast, involuntary muscle movements, writes “Independent”. As you drift off to sleep, two different brain systems balance their roles to bring you into the unconscious state. One of them is the reticular activating system (RAS). This network of cells is located under the cerebral cortex (cortex) and helps maintain alertness.

The second is the ventrolateral preoptic nucleus, located in the lower part of the brain, which controls sleep. Scientists believe that these two systems fight for supremacy during falling asleep. At that moment, the level of the serotonin transmitter also drops so that all the major muscles in the body can rest. However, it does not affect the smallest muscles, such as those around the eyes or in the joints, as a result of which the whole body can twitch, writes “DNews”.

According to other theories, it is an evolutionary atavism – it is a system that made the monkeys safe when they fell asleep in the trees. According to the BBC, hypnagogic twitches are most common in children, but most people experience them. However, people are usually not aware of them because they are too deeply asleep at the time of their occurrence.

Unlike the rapid eye movements that occur during REM sleep, this type of twitching does not reflect dream visions.

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Why do some of us look young and some look much older?


The results of detailed research by American scientists on the process of biological aging of people showed a radical difference between their biological and chronological pace of aging.
Some people age three times faster than their calendar peers who are bypassed by the merciless ravages of time because they have excellent genes or because it is influenced by the environment.

Scientists who participated in the research of 954 thirty-eight-year-olds from the same New Zealand city, during the research took into account 18 biomarkers to establish the speed at which their organisms age.

Among other things, blood cholesterol level, heart muscle health, lung function, state of capillaries in the back of the eye, telomere length, body weight, kidney function, gum health…

Biomarkers were measured in volunteers at the age of 26, 32, and 38, which enabled scientists to precisely determine the rate at which their bodies age.

According to the data published in the professional journal Proceedings of the National Academy of Sciences, it was shown that the biological age of the research participants varied between 28 and 61 years.

“The intention of the scientists is to conduct the same research among the elderly population, but if we want to prevent diseases that develop with regard to age, we must focus on studying the biological aging process of younger people.

“Aging increases the risk of developing various diseases, including malignant ones, and we are doing this to try to prevent the simultaneous development of several diseases in old age, and the next step is to find out what affects the pace of aging,”

said Prof. Terrie Moffitt from Duke University in the US.

Most of the research participants were found to be compatible when it came to their chronological and biological age. In individuals, the body, that is, the organism, aged three times faster in relation to their chronological age, and in some – time seemed to stand still.

“If we knew more about the biological aging process, we could treat people more fairly” of the same chronological age, says Moffitt, explaining that for some people, the time to retire at a certain age is actually too early because they are still in full force. Although it is still early to draw concrete conclusions, the research will help in testing methods to slow down the aging process.

“If we really want to find a way to slow down the aging process in order to prevent the development of a number of diseases in old age, we will have to conduct research on younger people. The results of the research give us hope that medicine will be able to slow down aging and enable people to live healthier and more active lives “,

concludes Moffitt.

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Scientists believe that all blue-eyed people have a common ancestor and are relatives

It is estimated that between 20 and 40 percent of Europeans have blue eyes, but the exact reason for blue eyes is not yet known. Scientists believe that it is a genetic mutation and that the gene survived because people with that eye color were considered more physically attractive, so they had more opportunities to reproduce.
Eye color is determined by the amount of pigment in the iris of the eye. A lot of pigment means brown eyes, less pigment means green eyes, and little or no pigment means blue eyes.

As many as 16 genes determine eye color, but the two main ones are “HERC2” and “OCA2”, with “HERC2” acting as a switch that activates “OCA2”, which then activates the proteins that produce pigments.

If one of these two genes mutates and stops performing its function, the chain of reactions is interrupted and the proteins do not create pigments. And the result is blue eyes.

Everyone has two of each type of gene in their body, one from their father and one from their mother. If one parent has the mutated “OCA2” gene, and the other all “normal”, the child will also have brown eyes.
If both parents have mutated “OCA2”, there is a 25 percent chance that the child will have blue eyes. In theory, a hidden mutated “OCA2” could be passed down through the family for generations without anyone having blue eyes.

Research conducted at the University of Copenhagen looked at the DNA of blue-eyed people and found that 99.9 of them had a mutation in the “OCA2” gene.

Because of this, scientists believe that all blue-eyed people come from a common ancestor, which means that they are, in fact, relatives.

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Is time travel possible?

Although it has not yet been constructed in any major scientific center, a time machine is theoretically possible and for centuries it has sparked the imagination of writers and the thought experiments of scientists…

The idea of time travel is almost as old as human civilization. One of the earliest evidences is recorded in the ancient Indian epic Mahabharata. King Reviata travels to another world to face the god Brahma. But when he returned, he realized that centuries had passed on Earth in the meantime.


One of the more famous time machines in science fiction was designed in 1895 by H. Dž. Wells in the novel The Time Machine, which was first published in sequels in Palmal magazine. Wells was also the creator of the term “time machine”, and his work experienced a large number of reissues and film adaptations, and in the following decades, as well as today, he inspired numerous other authors and creators of some new time machines.

However, except in the mind, there was no attempt to build time machines. However, it is still not impossible, at least in Albert Einstein’s theory of relativity. According to her, if a fast spaceship were to move at a relativistic speed close to the speed of light of 300,000 km/s, more time would pass on Earth than on the spaceship. That phenomenon, predicted by the relativistic equations, is called time dilation and stems from the fact that every reference system in Einstein’s physics has its own time.

This idea encouraged new thought experiments, the more famous of which are the paradox of the time tourist, the paradox of the twins, the paradox of the grandfather…

Here’s an example: suppose that time travel is indeed possible. A man decided to travel back in time, find and kill his own grandfather before he met his grandmother. This would mean that one parent of the time traveler was never conceived. However, we can now conclude that man from the beginning of history could not even travel through time and look for his grandfather, because he could not even be born since one of his parents did not exist.

But if he didn’t time travel for murder, his grandfather is still alive which means our great traveler will still be born, then time travel and kill his grandfather. The conclusion that arises is that, instead of doubting the possibility of the birth of the traveler, the possibility of time travel is questioned. This “paradox of the grandfather” was first discussed by the French writer René Berjave in his book The Careless Traveler from 1943.

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Racism and modern science where races do not exist

This question is, in fact, an example of how a seemingly obvious thesis (which scientists have proven in vain for more than two centuries) not only persists, persistent, widely accepted and rooted, but can have terrible and cruel consequences – inciting wars, social and economic divisions, pogroms and monstrous mass slaughter – without being completely accurate.

It is possible that it not only surprises you, but also slightly annoys you, so you have already attributed it to the “political correctness” of modern researchers, but it is really not a political thing, but a genetic thing. The irony is that the racial division that “blood” inspired so many ideologies was denied precisely by “blood” and hereditary material. Human genes, in fact, stubbornly refuse to show any racial diversity (as is clearly seen in other animals).

Today, by the way, the generally accepted point of view is that race is, above all, a social construct. According to the definition from “Encyclopedia of Race, Ethnicity, and Society” by Richard Schaefer, a race is a group of human beings with similar physical and social characteristics that society generally considers different from other groups.

This becomes clearer if we look at today’s Brazil, where a uniform mutual mixture of people of African, European and American origin has “created” entirely new groups. On the other hand, there is a well-known story about the historical (artificial) division of the inhabitants of the Congo in the Great Lakes region into members of the Hutu and Tutsi races. The division was introduced by the colonial rulers, the Belgians, and it not only became a social reality, but during the conflict in Rwanda it caused one of the most monstrous genocides in human history.

The idea and subsequent search for the biological basis of race began at the end of the 17th century, with the works of the French physician François Bernier. As Europe becomes familiar with the rest of the planet at that time, the increasing interest of science in the inhabitants of the new worlds and the issue of race will begin. One of the most influential biologists of all time, Carl Linnaeus, who founded taxonomy and classified all the living world, will divide people in 1735 into four races according to the “continental” key – Europaeus, Asiaticus, Americanus and Afer, so that each of them is assigned a temperament (where Europeans are active and curious and Africans are lazy and carefree).

Although it seems obvious that one can certainly taxonomically separate the indigenous population in Scandinavia from that in Central Africa, further research will show that all humans are not only part of the same species but also of the same subspecies Homo Sapiens Sapines.

Meanwhile, anthropological research from the late 19th and early 20th centuries (which implied that racial differences were present in genes even though it could not be verified) led to unfathomable horrors. Among other things, in Nazi Germany they served for the adoption of the so-called Nuremberg racial laws, the persecution and extermination of Jews, Slavs, Roma and other “inferior races”.

It has been shown, however, that differences between groups of people are not based on genetics at all. No matter how many attempts were made to find them before (and after) the deciphering of the human genome, it is now beyond doubt that the genes that determine race simply do not exist. This was clearly pointed out in 1972 by Richard Lewontin, a revolutionary American biologist, mathematician and evolutionist, who determined that as much as 90 percent of genetic variability is found within one “race”.

The variability among individuals in the human species, all that diversity in complexion, height, strength, and constitution, is so great that it is impossible to really determine a common genetic basis for any group that we would call a human race. Man is therefore a real celebration of evolution – seven billion people today make up the entire universe of biological diversity. And there is no reason to share it.

An illustration depicting the various peoples of Asia was printed in the famous Nordic Family Book, a traditional Swedish encyclopedia published from the mid-19th to the mid-20th century. Similar illustrations indicating racial characteristics were an integral part of practically all encyclopedias and textbooks of anthropology everywhere in the world at that time.

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Will we ever be able to clone dinosaurs?

We asked Riley Black, a science writer specializing in evolution, paleontology and natural history, to weigh in on the film’s basic premise — that dinosaurs were cloned using DNA taken from mosquitoes.

Time is a critical factor.

The last of the non-avian dinosaurs – undeniably fearsome
that haunt museum halls and our dreams – they became extinct 66 million years ago. It’s so far away from us that we can’t even fathom how long it’s been, and we’ve lost any chance we had of cloning dinosaurs in the relatively short time since the late Cretaceous mass extinction.

This isn’t the dinosaur mix you’re looking for…

You may have heard that paleontologist Mary Schweitzer and colleagues recovered some soft-tissue remains from the Cretaceous dinosaur Tyrannosaurus and the hadrosaur Brachylophosaurus. These claims have been controversial, but cannot be dismissed. Schweitzer and others have built a stunning argument that in exceptional cases, fragments of the original dinosaur protein may have survived to the present day. But that’s not what we need to clone a dinosaur. The starting point of any dinosaur resurrection exercise is DNA. Unfortunately for paleo geeks like myself, DNA has a relatively short half-life. There is almost no chance of ever recovering the genetic material of the dinosaurs.

Looking at the bones of recently extinct bird-like dinosaurs—specifically, the 8,000- to 600-year-old bones of giant flightless birds called moas that once walked New Zealand—the geneticists calculated that DNA has a half-life of 521 years. That’s longer than researchers expected, but nowhere near long enough to allow us to ever get DNA from a Tyrannosaurus or Triceratops (much less much older dinosaurs like Brachiosaurus and Dilophosaurus). Even under ideal conditions where the bones would remain dry and chilled at -5 degrees Celsius or below, the creature’s entire genome would have been wiped out within 6.8 million years, or about 59 million years less than the last non-avian dinosaurs.

Parasaurolophus puzzle

Any ancient dinosaur DNA would show up in tiny and gray, just like the Ice Age mammoths, Neanderthals, giant sloths, and saber-toothed cats that provided the genetic minutiae. The trick is to identify those parts and figure out where they belong in the animal’s complete genome. It requires a baseline derived from a close relative – modern Asian elephants work for mammoths, and our own genome for Neanderthals.

But living bird dinosaurs are so far away Pachicephalosaurus and that their utility in revealing the genome arrangement of non-avian dinosaurs would be quite limited. And that’s not to mention pseudogenes and non-functional parts of the genome. We haven’t even fully sequenced the genome of our own species—we’re still at about 99 percent of the functional part—so we’re pretty far from completely reconstructing an extinct genome.

Raptor by any other name

So a Velociraptor or Tyrannosaurus genome would not be a feat of resurrection, but of reinvention. Even if it were possible to obtain dinosaur DNA, we would have to reverse-engineer dinosaur genomes according to our best possible estimates of their anatomy and behavior. There are more obstacles. Creating a complete DNA profile gets you nowhere if those genetic cues can’t be translated into a viable embryo that will grow to maturity. It is understandable that Michael Crichton and the film adaptations of his work completely obscured this point, especially since researchers cannot clone birds.

It’s easy enough to say – We’ll stick an artificial nucleus in an ostrich egg and the rest will take care of itself, but that ignores the intrinsically biological interactions that actually make up a living, growing organism. Since birds committed the growth of their offspring outside the body, there may not even be a way to successfully clone a bird, so there would be no method by which we could bring back the dinosaurs even if we had all the necessary raw materials.

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Is meditation a necessity of modern man?

From a historical perspective, meditation has been practiced for 5,000 years.
Meditation has its roots since ancient times. It has also been studied for its physiological effects on people in the modern world.

According to research in psychology, meditation has been practiced for 5,000 years. It became the subject of scientific studies as early as the sixties of the last century, and the practice spread from Western Europe to the USA. Some associate meditation with religion, Buddhism, Judaism, Islam, Hinduism, and even some Christian religions.
People have been meditating since ancient times

How has meditation transformed from ancient times to today?

The proven benefits of meditation have merged ancient religion with modern science.

While meditation was once considered a religious and spiritual practice, it is now used as a modern tool and practice that modern studies have shown can relieve stress, balance emotions, control pain and improve sleep quality, according to the National Library of Medicine.

Meditation has almost become synonymous with better sleep: There are tons of meditation apps on the market (via Medical News Today, one of the most popular, Headspace, reached two million paid subscribers in 2020.

Scientifically proven benefits of meditation

Meditation helps people cope with the fast-paced life in the modern world that lives seven days a week, 24 hours a day. We are attached to our work, constantly on our phones and always planning the next meeting, event, all the while trying to balance work and personal life.

The most common reasons why people decide to meditate is the desire to overcome sudden reactions, to avoid increased aggressiveness, as well as to get rid of anxious feelings and stress. People choose meditation to clear their mind and be more focused. Whoever decides to meditate, you need to include this activity in your daily plan. By the way, meditation is also considered important for the way you communicate with people around you.

Modern society lives

Modern society lives “fast”, so it is meditation that slows people down and keeps them focused

Chances are you’ll thank yourself if you carve out just a little time in your busy schedule for a little meditation. After all, there are many scientifically proven benefits of meditation that can improve our quality of life.

Meditation makes us more self-aware

In order to live in a quality way, it is important to know ourselves and to be in touch with our feelings. If you’re in touch with who you are, chances are you’ll be able to connect better with the people around you – and interactions are important.

According to a study published in the journal Trends in Cognitive Sciences, meditation can help define destructive behavior patterns and turn them into healthy habits.

The same conclusion was published in the journal Advances in Mind Body Medicine, where it was pointed out that time spent in silence is good for the mind and body, and a person becomes better and more relaxed.

Meditation reduces feelings of anxiety and depression, improves attention and helps with concentration when it comes to pain. Meditation can also help prevent memory loss and help you get rid of addiction.

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People who wake up with an alarm are more tired than those who wake up in a natural way

People who need an alarm to wake up in the morning are generally more tired than those who wake up without it, the results of an American study conducted on 450 employees working in offices in the United States, in which scientists measured the length of sleep and heart rate with the help of portable devices.

57 percent of them woke up with the help of an alarm and, as a rule, they were more tired than those who woke up naturally because the alarm disturbed their natural sleep cycle,

announced scientists from the University of Notre Dame in Indiana, reports Euronews.


In contrast, people who woke up naturally slept longer and consumed less caffeine on a daily basis. Also, they felt less tired during the day.

When we wake up naturally, scientists explain, the body activates the “stress response” shortly before waking up in order to prepare us for it and wake us up.

While waking up with the ringing of the alarm, that natural response of the organism is then skipped and this leads to the interruption of the sleep cycle.

The most affected by fatigue are the so-called night birds, the people who use the alarm to wake up in the morning the most, according to research published in the journal Sleep.

With the morning alarm, we should first think that it is time to get up, and not that we should sleep longer and silence the alarm, because we will not solve the lack of sleep if we press the snooze button.

Those five or 15 minutes of sleep that we get after pressing “snooze”, i.e. delaying the alarm, will undoubtedly not give us the best we should get from the sleep process – the study states.

Snooze the alarm plays no role, Notre Dame professor Aaron Striegel says in the journal Sleep.

The purpose of this research was partly the desire to demystify what happens in such cases. It’s problematic if you need an alarm because it means you’re chronically sleep-deprived,

says Striegel.

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Bizarre daily habits of famous geniuses in history

Genius minds are known for their eccentricity, but there are also many who went a step further with their craziness. Below are the 13 most bizarre habits by famous scientists, composers and writers. Various myths are associated with a large number of famous people from history, which no one is sure if they are really true.

In his book “Daily Rituals”, writer Mason Coury listed some musicians, artists and scientists whose bizarre routines made them as famous as their achievements.

1- The American composer George Gershwin was a workaholic, and he created his works while sitting at the piano in his pajamas and bathrobe. His brother Ira claims that Georges was never relaxed and always had something to do.

2- One of the greatest geniuses ever, Albert Einstein, lived in seclusion. He always had long hair because he did not like to visit the barber, and he considered socks unnecessary, so he never wore them.

3- Poet Edith Sitwell used to start the day by lying in a coffin because it supposedly inspired her to write her somewhat morbid lyrics. She loved to sleep and declared that every woman should spend one day a week in bed.

4- A well-established daily routine helped Charles Dickens write 15 great novels. His desk was always elaborately arranged: there was always a small vase of fresh flowers on it, a large knife for opening a letter, a gilded leaf brooch with a rabbit sitting on it, and two bronze figurines of frogs brandishing swords in a duel.

5- One of the most popular writers of crime novels, Agatha Christie, didn’t have a pen at all, she just created her works wherever she went.

The marble coffee table in the bedroom was a good place to write, as well as the kitchen table between meals.

said Christy.

6- The author of “Breakfast at Tiffany’s”, Truman Capote, wrote in bed with coffee and cigarettes. But only three cigarettes could be in the ashtrays at a time, and the rest was put away in his pocket. He compulsively added various numbers in his head and did not dial the phone number or the hotel room if he considered those numbers unlucky.

7- The writer Jane Austen did not like anyone but her immediate family to see her while she was writing. She liked the door to her room to creak so she could hear if someone came in, and she wrote on small pieces of paper so she could quickly hide them from prying eyes.

8- The inventor of the telephone, Alexander Graham Bell, slept only three hours a day and claimed that sometimes he had so many ideas in his head that absolutely nothing could be shaken from his thoughts.

9- The poet WH Auden refused to work in the evenings.

10- Only world Hitlers work at night, no honest artist – he said. He also gets his mental energy from amphetamines.

11- The “father of American literature” Mark Twain had a big problem with insomnia, and when he managed to fall asleep it was usually on the bathroom floor.

12- F. Scott Fitzgerald, the author of “The Great Gatsby”, loved alcoholic beverages. The problem is that he lived during the prohibition era, so his favorite drink was gin because it worked fast and it was hard to detect that he was drunk. That love for alcohol took him to his grave too early, already at the age of 45.

13- The writer Victor Hugo ate two raw eggs every morning and bathed in ice water. He also visited the barber every day.

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Five science things we learned in school that are not true


In the scientific world, new discoveries are made almost every day.
Due to new achievements and discoveries, something that older generations learned in school is now outdated and scientific facts have been changed, writes Business Insider.

For example, we believed that diamond is the hardest mineral in the world, but in fact the hardest structure in the world is ultra-hard nanoconnected cubic boron nitride.

Although it was widely believed around the world that the witches of Salem were burned at the stake, the truth is that they were actually sentenced to death by hanging.

Also, we believed that the pyramids were built by Jewish slaves, but the truth is that they were built by the Egyptians themselves because there were no Jews then. Experts claim that they even got their own crypts in the pyramids.

It was believed that paper could not be folded more than seven times, while a group of students in 2012 failed to fold stacks of toilet paper 13 times.

One of the most commonly used scientific facts believed to be the Great Wall of China is the only structure that can be seen from space, but the first Chinese astronaut himself admitted that he failed to see the wall during his stay in space.

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Why have the discoveries of women scientists been attributed to men throughout history?


Women scientists lead revolutionary scientific research, however, despite their extraordinary discoveries, women worldwide represent only 30 percent in science, according to data from the United Nations (UN). Female scientists are rarely recognized for their achievements – only three percent of Nobel Prizes in science have ever been awarded to women, and only 11 percent of women are in senior research positions leading projects in Europe.

Globally, the enrollment of female students is particularly low in information and communication technologies – three percent, in natural sciences, mathematics and statistics – five percent and in engineering, manufacturing and construction – eight percent.

Today, women make up half of the workforce, earn more university degrees than men and, according to some estimates, represent the single largest economic force in the world. Still, gender gaps in science persist more than in other professions, especially in cutting-edge, math-intensive fields like computer science and engineering.

Many cultural barriers to women continue to stand in the way of science, from directing girls to other occupations, gender bias, stereotypes and sexual harassment in a male-dominated workplace to possible career restrictions for women due to childbearing. The contribution of women to science that remained unrecorded is not surprising because since the emergence of professional science in the 19th century, women scientists, with notable exceptions, often did not receive credit for their work. Also, the work of those who collaborated with men, most often relatives, was often attributed to the work of their brothers, fathers or husbands.

Science and gender equality are vital to achieving internationally agreed development goals, including the 2030 Agenda for Sustainable Development, according to the UN. Over the past 15 years, the global community has invested a lot of effort in inspiring and involving women and girls in science. However, women and girls are still excluded from full participation in science.

Ever since the UN General Assembly declared February 11 as the International Day of Women and Girls Scientists in 2015, the goal has been to raise awareness of the issue that celebrates female excellence in science. Throughout history, although famous scientists like Marie Curie and Jane Goodall were eventually recognized for their contributions to science, a significant number of female scientists were overlooked and marginalized simply because of their gender. However, despite the challenges of gender discrimination and lack of recognition in the scientific community, countless inspiring women in these fields have made historic contributions to science and helped advance our understanding of the world around us. Many were not recognized during their lifetime, but their achievements helped new generations of female scientists.

Women in science, neglected in history

One of the closest examples of the omission of women from the history of science in the Balkans is the story of Mileva Marić, a Serbian physicist and mathematician, Albert Einstein’s first wife. The marriage of Albert Einstein and Mileva Marić was the relationship of two brilliant minds, one of which characterized the 20th century, and the other became an example of a stumbling block encountered by female scientists.

Mileva Marić (1875-1948) was a physics student in Switzerland when she met Albert Einstein, who was 17 years older.

Mileva Marić did not publish any research or claim credit for any of Einstein’s discoveries; any work they did together was done in privacy. All arguments for and against her participation in Einstein’s discoveries are circumstantial. But the lack of direct evidence has never stopped debates about her contribution. The letters Milevi wrote to Einstein in which he talks about the ideas of relative motion and molecular forces – for which he later became famous – contain the words “we” and “our” referring to research.

As Nature magazine writes, the controversy about Mileva’s contribution to science and Einstein’s research was stirred up by the biography of Mileva Marić from 1969, prepared by high school teacher Desanka Trbuhović-Gjurić. The book claimed that Mileva’s contribution to Einstein’s success was “large and significant”. That assessment was based on the testimony of contemporaries, Mileva’s early academic success, and Einstein’s 1921 Nobel Prize legacy as part of the divorce settlement. Later, the linguist Senta Troemel-Ploetz and the physicist and parapsychologist, Evan Harris Walker, interpreted the letters the pair wrote to each other as evidence that Mileva’s ideas were central to Einstein’s pursuit of science.

Lise Meitner (1878-1968) was a nuclear physicist born in Vienna who was the first woman with the title of professor of physics in Germany.

She worked with fellow scientists Otto Hahn and Otto Robert Frisch and was part of a small team that discovered nuclear fission, a process that would later help develop nuclear weapons and generate electricity.

Meitner not only suffered gender discrimination in the workplace during the 1930s, but also the greater threat of ethnic cleansing. She lost many prestigious academic positions because of the anti-Jewish laws enforced by the Nazis. She eventually fled to Sweden and acquired dual citizenship there.

Although she received numerous prestigious awards later in life, Lise Meitner was not the winner of the 1944 Nobel Prize in Chemistry, which was awarded solely to her fellow scientist Otto Hahn for the discovery of nuclear fission. Many scientists later said that the exclusion of Lisa Meitner by the Nobel committee was “unfair”.

Rosalind Franklin (1920-1958) was a British chemist who researched DNA.

The data from her research was the first to show the basic dimensions of DNA chains and revealed that the molecule is in two matching parts, which go in opposite directions. Her discoveries were used by James Watson and Francis Crick to supplement their research on the DNA model. These studies were published as supplementary data along with research articles by Watson, Crick and Maurice Wilkins in the journal Nature.

Many in the scientific community argue that Rosalind Franklin should have received the Nobel Prize together with Watson, Crick and Maurice Wilkins in 1962 “for their discoveries concerning the molecular structure of nucleic acids and its importance for the transmission of information in the living organism”. Sadly, Rosalind died of ovarian cancer in 1958, just four years before the prize was awarded. At that time, the Nobel Committee could also award the prize posthumously.

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Sitting accelerates the aging process

Older women with too little physical activity and at least 10 hours of sitting per day have cells that are on average 8 years older than cells of their peers who do not lead such a sedentary life. All this was discovered by scientists at the University of San Diego. The study they made was conducted on 1,500 women aged 64 to 95, and published in the American Journal of Epidemiology.

We already knew that too much time spent sitting increases the risk of various diseases and slows down the metabolism, but this new research has shown that inactivity and sitting also accelerate the aging process itself, which is an incredibly valuable discovery. Telomeres are the secret of aging. Telomeres, as structures at the ends of chromosomes, naturally shorten and fray as cells age. The discovery that telomere length is related to lifespan has already been awarded the Nobel Prize, so this research is a logical continuation based on that useful knowledge. According to this study, the chronological age of a person does not have to be related to his biological age, and that is why cells age faster, because they have shorter and shorter telomeres.

Faster shortening of telomeres is associated with cardiovascular diseases, various types of cancer and diabetes, and bad lifestyle habits such as obesity and smoking also contribute to their shortening. So, it has been shown that women who sit for 10 or more hours a day, and do not engage in physical activity of moderate to strong intensity for 40 minutes a day, accelerate their aging process by their own inaction. In this way, an average eight-year acceleration of the biological aging of cells is ensured, unlike that of their peers who lead a more physically active life. The University of San Diego has announced a new set of studies that will also study telomere length and the relationship to exercise and sitting in men and younger populations. Until then, while you wait for more evidence against sitting – just in case, move more, you won’t get any rest.

The impact of mental health on aging

A reliable source is a statistical model that measures a person’s biological age instead of chronological age. To achieve this, an aging clock has been devised that uses blood, genetic and DNA testing to measure a person’s biological rate of aging. Smoking is the main physical factor in this case. Mental health concerns include depression, sleep problems, loneliness and feelings of unhappiness.

The modern lifestyle, which brings with it inner psychological restlessness and anxiety, leads to less social contact and withdrawal. This is exactly the scenario that played out at the beginning of the COVID-19 pandemic. However, the consequences of the pandemic on human social life are present even today. The option to access social networks is often cited as an excuse, which is actually a double-edged sword. Sitting in front of a computer or phone screen every day only deepens a sedentary lifestyle, which leads to further alienation of a person from the environment.

Based on the conducted research, it was concluded that loneliness significantly affects the aging process. In addition, factors of the external environment that influence our mood determine our behavior and openness to others. It is desirable to control factors such as quality sleep, physical activity, a healthier way of eating, but also the living environment such as furniture orientation, hygiene and daylighting. Self-control of access to social networks or at least limitation of time spent at the computer is required.

Can pets prevent premature aging?

When human contact is not available, it can be useful to enjoy the presence of a furry friend. Doctors say owning a dog can help reduce the risk of premature death, especially among people who live alone, who are the group most at risk of debilitating loneliness. Previous research has also found that pet owners may have better social and communication skills and engage more in community activities.

Animals can be great conversation starters, and taking care of a pet, by taking it for a walk or to the vet, can discourage sedentarism as well as provide an opportunity to meet new people. If a larger animal, such as a dog or cat, seems too much of a commitment or too expensive, why not consider a small, mostly carefree and much cheaper alternative, such as fish, snails or insects?

Namely, older adults who in one experiment were offered crickets to care for as pets became less depressed and had improved cognitive functioning within 8 weeks of starting the experiment. Or, you can volunteer at an animal shelter or offer to babysit the pets of friends and acquaintances when they’re on vacation, so you can enjoy the same benefits and improve your social relationships.

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Why do we hallucinate?

What exactly is a hallucination and how does it occur? Hallucination is actually the perception of sound, smell or visual effects.

These are effects that occur without specific stimuli and those that are not present. Hallucination can be caused by several things, such as drugs, dreams, or neurological diseases. It also happens that they occur in the form of sound, and in those cases when the hallucinating person claims to hear the voices of the deceased or unreal and mythological beings.

The word hallucination comes from the Latin word alucinari, which translates as “walking in the mind”.

What types of hallucinations are there?


There are different types of hallucinations, depending on the cause that triggers it. Hallucinations are most often caused by drug use or fever. It can occur in people with disabilities and those with impaired hearing. They can also occur as a consequence of a serious illness or a mental disorder, such as schizophrenia.

There is a large number of visual hallucinations, such as a visual disorder called Dysmegalopsia, when things are experienced as visually larger or smaller than they really are. Then the Chromatopsia hallucination, when everything is the same color or the Brobdingnagian hallucination, which makes all people look like giants or Lilliputian, where the situation is reversed and many others.

The most famous visual hallucination is a mirage, its appearance in unusual situations is characteristic, and it reflects the realization of a wish.

In addition to visual hallucinations, there are also auditory hallucinations that are characteristic of schizophrenia and include different voices. When it comes to this hallucination, people often talk to voices, and sometimes they try to physically deal with each other.

People also hallucinate when they feel that insects are crawling on their skin. It is a type of hallucination that is related to the sense of touch.

Psychologists, experts and philosophers have been trying to figure out this phenomenon for a long time. One of the theories is that the hallucination occurs due to a chemical imbalance, because research has shown that during the hallucination, different chemical processes take place in certain parts of the brain.

Countless reasons

dr. Alan Manevitz, a clinical psychiatrist at Lenox Hill Hospital in New York says that a large number of psychiatric and medical conditions are related to hallucinations and delusions.

Such conditions include personality disorders, post-traumatic stress disorder, obsessive-compulsive disorder, brain tumors, thyroid disorders, epilepsy, some infectious diseases, and medications. Women can develop postpartum psychosis, which can include hallucinations. Doctors advise that anyone who has had such psychotic episodes, such as hallucinations and delusions, should talk to their doctor about it and get tests to see if it’s something serious, if it’s momentary loss of contact with reality or is caused by some other reasons

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Nobel Prize in Chemistry 2022: Honors for three scientists developing click chemistry

The Americans Carolyn Bertozzi and Barry Sharpless, as well as the Dane Morton Meldal, are the winners of this year’s Nobel Prize in Chemistry for their work on joining molecules – in the field known as click chemistry.

Click chemistry is a branch of science that deals with the study of how to connect different molecules into a single whole. Their work is used in cell research and the monitoring of biological processes, and it can also be applied to drugs for the treatment of cancer. The Nobel committee praised their work, which they say will make chemistry more efficient, adding that the impact of their research can be seen in science.

“With this year’s prize, we want to show that not everything has to be complicated, but that things can be made easy and simple,” says Johan Acquist, chairman of the Nobel Committee for Chemistry.

The winners will share a prize of ten million Swedish kronor (about 912,000 euros). Bertocci, a pioneer in bioorthogonal chemistry, is the eighth woman to win the Nobel Prize in Chemistry.

“I am delighted, I can hardly breathe,” said Bertossi after being informed of the prize by the Nobel committee.

Her discoveries can be applied in medicine and pharmacology, she explained. This means that scientists can “apply chemical research to the human body by monitoring whether the drug ends up in the right place and keeps it away from where it shouldn’t.” It’s also a “biological tool” that will help scientists spot molecules they didn’t know existed, she added. Barry Sharpless won the Nobel Prize for the second time. 21 years ago, he became a Nobel laureate thanks to his work on chiral catalysts.

Sharpless and Medal worked separately, but they
The Nobel Committee last year awarded the prize to scientists for developing ways to construct molecules. Swedish physicist Svante Pabo received the Nobel Prize in Physiology and Medicine for Neanderthal DNA research.

Three scientists, French Alain Aspe, American John Clausur and Austrian Anton Zeilinger, received the Nobel Prize in Physics on October 4, for research in the field of quantum mechanics – the science that describes nature using particles smaller than atoms.

Previous winners of the Nobel Prize in Chemistry

2021 – Benjamin List and David McMillen, awarded the Chemistry Prize for developing a new way to construct molecules.

2020 – Emmanuelle Charpentier and Jennifer Doudna won the prize for inventing tools to modify DNA.

2019 – John B. Goodenough, M. Stanley Whittingham and Akira Yoshino shared the prize for their work on lithium-ion batteries.

2018 – Francis Arnold, George P. Smith and Gregory Winter were awarded for the discovery of enzymes.

2017 – Jacques Dubochet, Joachim Frank and Richard Henderson were awarded for advancing the picture of biological molecules.

2016 – Jean-Pierre Sauvage, Fraser Stoddart and Bernard Feringa won the prize for a machine made of molecules.

2015 – Tomas Lindahl, Paul Modric and Aziz Sankar were awarded for their work on DNA repair.

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Certain details of the known building, about which science does not inform us

These famous and world-famous (and recognized) attract millions of visitors every year, but have you ever wondered what their history is? During the tour, you will probably be introduced to some lesser-known things by a local guide, but until you visit one of them, here is your chance to learn more about them!

Empire State Building (New York)

It was built by slightly more than 3,400 workers, who (be careful now) built four floors every week! Therefore, it is no wonder that the entire necklace was completed in only 450 days.

At a height of 381 meters, it held the title of the tallest building in the world until 1972. About 40 million dollars were spent on its construction, and today’s value is an incredible 637 million. The building even has its own postal code, and the top was intended as a place where zeppelins would be “parked”.

And yes, let’s also say that there is not 102, but 103 floors, but the last one is reserved exclusively for VIP guests, so any of us mortals will hardly ever visit it.

Eiffel Tower (Paris)

The symbol of Paris is also one of the most recognizable buildings in the world. The tower, made for the World Exhibition in Paris, was built for two whole years, and consists of a total of 18 thousand pieces of iron. After 20 years, it was supposed to be demolished, but the city authorities decided to keep it because of the antenna on top, which was important for the radio signal.

Today, Paris is unimaginable without the tower, and not only is it visited by millions every year, but it is also the workplace for more than 600 Parisians.

Taj Mahal (Agra)

It took 22 thousand people, a thousand elephants, 28 different types of stone and 17 years to build it. The Taj Mahal is famous for its symmetry, and depending on the time of day, it is always a different color.

Legend has it that Shah Jahan tore the fingers and hands of the workers who worked on this building so that they could never build anything as beautiful again. An esthete, but also a rather cruel man.

Trevi Fountain (Rome)

Hardly anyone is not familiar with the legend that says that throwing a coin over the left shoulder into the Trevi Fountain guarantees a return to the Eternal City.

The city authorities have nothing against the fact that tourists have “embraced” the legend, given that every day around 3000 euros are poured into the fountain. So, annually, that fountain brings a little more than a million euros. Not bad, right?

Caritas workers collect all that money every day and donate it to more than 200 countries.

Sagrada Familia (Barcelona)

Whoever visited the Catalan capital, could not remain indifferent to the appearance of the Holy Family. The church is the pinnacle of the work of the great architect Antoni Gaudí, and although construction began in 1882, it is interesting that it is still not fully completed.

The legendary Gaudí worked on it for about 40 years, until his death, and according to the latest information, the cathedral is expected to be completed in 2025. They were alive, then they saw.

Statue of Liberty (New York)

Perhaps the first monument that comes to mind when it comes to the USA is certainly this woman with a torch in New York Harbor. The Statue of Liberty was made in France and is a gift from France to the USA. The fact that it was disassembled into 350 parts and transported by ship on the way to America speaks volumes for how big it is.

The sculpture represents the Roman goddess of liberty, and the face is modeled after the face of the sculptor’s mother. And yes, if this statue was wearing “shoes”, it would need the number 7801!

Hermitage (St. Petersburg)

One of the largest and most beautiful museums in the world is located in the imperial city of Saint Petersburg. It has more than three million pieces in its collection, including works by Michelangelo, Leonardo, Rubens, Rembrandt, Van Gogh and Picasso. The following speaks volumes about the size – if a visitor were to spend only a minute at each exhibit, it would take him 11 years to visit the entire museum.

The museum is specific in that it also “employs” 60 cats in charge of guarding the museum premises from mice.

Leaning Tower of Pisa

One of the most visited attractions in the world in the 1990s was closed to the public because the tower simply leaned too far, and the safety of visitors was at risk.

Noticing this, the Italian authorities came up with a plan to restore and return the tower to the position it had in 1838. The project was created by the architect Mikele Jamoilkovski, the tower was saved, and the entire operation cost 25 million euros.

Since 2001, it has been reopened to the public, so social media has been flooded with images of people “pushing” the tower.

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Why is it important to express your feelings and emotions, both good and bad?

Expressing feelings and emotions has always been considered a sign of weakness, especially when it comes to men. However, over the years, society has begun to realize how wrong that belief actually is.
In fact, being able to express and process feelings is very useful for us. Happiness, anger, frustration, excitement – release those feelings!
Keep reading to learn more about the benefits of expressing your feelings and emotions.

  1. It’s healthy for everyone

Being able to express feelings of happiness or even sadness is incredibly healthy. Scientists have long believed that what we feel significantly affects the way our body reacts. When we are happy, our body feels nurtured. When we are sad or angry, our body also has to release some tension. Expressing feelings and emotions is important because it serves as an outlet for us. Why is it dangerous to keep all negative feelings to yourself? When you think about it, all that repressed negativity has to “go” somewhere. In the most unfortunate cases, this negative energy manifests as illness.

  1. It helps you develop

Expressing your feelings helps you develop as a person. Some feelings may not be very pleasant, but allowing yourself to feel them makes it easier for you to understand them. Start by asking yourself questions you wouldn’t normally ask yourself. In a way it makes you look at situations without colored glasses and also teaches you to recognize what other people are feeling.

  1. It sets you free

Can you imagine not being able to express your feelings at all? Many children who grow up in “strict families” often do not know what it means to be free. They are mostly protected and occasionally even have to deal with repressed feelings. However, once they are released from control, they feel light and free, and when a person feels that way, the world is new again. The will to live increases drastically.
Expressing feelings and emotions is really very important. However, it is also very important that we learn how to do it properly. For example, being angry does not give you the right to destroy someone’s room or to be mean and abusive to others. By directing your feelings in the right way, you will be able to live a meaningful life.

Are emotions good and bad?

We have all been taught that certain emotions are bad, such as fear and anger, and some are good, such as happiness and joy. Do you judge emotions that way? If so, you may be disappointed when we tell you that emotions are neither good nor bad.
They are simply our feedback system to ourselves, an alarm of sorts about what is happening to us right now.
Imagine looking at a beautiful sunset and feeling absolutely nothing, or holding a newborn child and feeling no joy… Or imagine feeling absolutely no sadness in response to the death of a loved one…

Emotions happen, regardless of whether we are aware of them or not. Therefore, they tell us exactly what is happening to us. Precisely for this reason, we should accept, feel and express our emotions, because then we open up opportunities to improve our life. If we ignore or even worse suppress emotions deep inside or express them in an inappropriate way, what they are not, then we have opened the door for emotions to rule our lives and thereby limit us.
A lot of people believe that they should constantly experience pleasure and joy in order to be happy in life. But that’s not the point. These are just one of the many emotions we experience.

Unfortunately, in most cases when we are children we are not taught how to appreciate the emotional part of ourselves or how to accept emotions. Instead, it very often happens that parents punish children because they cry or get angry about something, and then beliefs arise such as it is a weakness to show emotions, real men don’t cry, it’s not nice to see girls who get angry and similar, which is why we experience obstacles in our life. Whatever your belief is, know that it is your belief that determines whether your emotions rule your life.

What role do emotions play in your life? What is your belief about emotions?

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20 fascinating facts about human brain

Below we present to you 20 short facts about the human brain that you may not have known.

1. Although responsible for only about 2% of body weight, the brain consumes about 20% of the oxygen in our blood and 25% of the glucose (sugar) circulating in the bloodstream.

2. There are about 100 billion neurons in the brain, but they make up only 10% of the brain. About 75% of the brain is water.

3. The average weight of the human brain is about 1.3 kilograms.

4. The brain produces a current strong enough to power a 10 to 23 V light bulb.

5. The average adult brain weighs about 1.3-1.4 kg. Height and weight have nothing to do with intelligence quotient (IQ).

6. When the blood supply to the brain is interrupted, after losing consciousness after 8-10 seconds, he can survive without oxygen for only a few minutes because brain cells begin to die after 1 minute without oxygen.

7. A newborn baby’s brain triples in size in the first year of life.

8. The brain has 60% white and 40% gray matter.

9. When you have a headache, your brain doesn’t hurt. The brain has no pain receptors and therefore cannot even feel pain.

10. Although some animals have larger brains, for example the elephant, the human brain accounts for 2% of the total body weight (in the case of an elephant, it is only 0.15%), which means that humans have the largest brain for their body size.

11. Many studies have proven that the brain can easily create a false memory, that is, create an event in your childhood that never actually happened.

12. Laughing activates five different parts of the brain.

13. If it’s healthy, your brain never loses its ability to learn.

14. Research has shown that the hippocampus, the part that deals with visual-spatial awareness, is larger in London taxi drivers than in other people. London taxi drivers spend months and sometimes years memorizing literally every street in London before they get their license.

15. There are certain ‘mirror neurons’ in the brain that cause you to yawn when others yawn around you, but also cause a part of your body to hurt for a moment, even though someone else has hit themselves. Scientists believe that these neurons are also responsible for the general feeling of empathy towards others.

16. Drugs like cocaine activate the pleasure center in the brain (nucleus accumbens), and release dopamine serotonin which makes you happy. The nucleus accumbens is also activated when you help someone in need or donate money/goods to a charity.

17. Every time you remember something or have a new thought, you create a new connection in the brain.

18. There are over 100,000 kilometers of blood vessels in the brain.

19. Numerous scientific studies have concluded that reading aloud to children and talking to them often contributes significantly to the development of their brains.

20. If you want to remember something, create an association because that’s how memory is created.

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Why don’t we remember anything before our third birthday?

Your parents often told you about your adventures when you were a child. Of course, you don’t remember it, just like the vast majority of people in the world don’t remember anything before their third birthday.

This phenomenon is called childhood amnesia, and it is still a puzzle for scientists. The fact that we don’t remember early experiences is somewhat paradoxical because in the first few years we acquire many complex skills “for life”, such as walking, talking and recognizing people’s faces. And yet, memories of certain childhood events are lost in adulthood. It’s as if someone tore the first few pages out of our autobiography.

What is the cause of childhood amnesia?

This question has plagued psychologists for more than a century, but we are finally uncovering the pieces of the puzzle. The first serious study of childhood amnesia was the work of French psychologists Victor and Catherine Henri in 1898. Spouses Henri, while talking to 123 adults, realized that their earliest autobiographical memories went back to the age of just over three years. These findings were later confirmed by numerous studies that indicate that the average age for the first memories is between three and three and a half years. However, there is a lot of variability: some people seem to remember events when they were only two years old, while others remember nothing before they were six or even eight years old. At the same time, those early memories are rather hazy.

How did Freud interpret the absence of early memories?

Serious attempts to explain the phenomenon of childhood amnesia began decades after the Henries published their research. Sigmund Freud, the father of psychoanalysis, reflected on the problem of childhood amnesia in his essay from 1905. At the same time, he concluded that we repress our childhood memories because they are full of sexual and aggressive impulses and are therefore too embarrassing to face in later life, reports Jutarnji.hr. However, that idea fell away over time, and the thesis was launched that young children simply cannot form explicit memories of events. The picture changed again in the 1980s, when the first studies of children themselves appeared instead of research on what adults remember from childhood. Thus, scientists have discovered that children younger than two or three years old can indeed recall autobiographical events, but that these memories fade. Then the question arose as to what causes their disappearance.

What did memory research in children show?

Canadian psychologist Carol Peterson from Memorial University in Newfoundland found in her research that children can remember traumatic experiences quite faithfully, even when they happened at a very early age. In a period of eight years, children could remember things that happened to them five years ago, that is, when they were three years old. But, prof. Peterson was also interested in whether eight-year-olds could remember ordinary events from early childhood. Her research from 2005 on 140 respondents showed that children under the age of nine have some memories of their first impressionable experiences. But the older the children, the fainter the memories. Thus, children from six to nine years old could recall events from the time when they were three years old. However, teenagers between the ages of 14 and 16 recalled only individual situations from when they were over four years old.

Two years later, Carol Peterson interviewed the same 140 respondents again. She asked them the same questions: What are their earliest memories? Of course, everything that the children mentioned was also checked by the parents. The results showed that only five of the 50 youngest children, who were between four and seven years old at the time of the first interview, could recall their earliest memories, even after being reminded of what they had said two years earlier.

“The memories just disappeared,” Carol Peterson told Live Science. On the other hand, 22 out of 61 children aged ten to 13 could recall the same memories from their earliest years as two years ago. Children over the age of ten were able to recall, after being reminded, almost all of their earliest memories. By that age, the earliest memories crystallize and those memories stay with us in adulthood.

Does childhood amnesia also exist in animals?

Neuroscientists led by Catherine Akers from Children’s Hospital in Toronto published a study in Science in 2014 that showed that mice also have their own version of childhood amnesia. It is similar with monkeys, our close relatives in the animal world. Scientists cite neurogenesis, the process of creating new neurons, as the main cause of our forgetting early events in childhood. Until the 1990s, the dogma reigned in science was that the number of nerve cells or neurons is determined at the moment of birth and that their number only decreases during life. But scientists have shown that our brain changes throughout life and that new neurons are created even later. One of the places of neurogenesis is the hippocampus, a structure in the brain that is involved in the creation of long-term memories. Neurogenesis in the hippocampus peaks during the first few years. Catherine Akers and her collaborators have shown in experiments on mice that the rapid creation of new neurons in the hippocampus blocks access to old memories.

Is the period of earliest memories the same in all cultures?

Scientists have realized that there are puzzling cross-cultural differences about the age of earliest memories. For example, in one cross-cultural study, researchers found that the average age of first memories for people of European descent was about 3.5 years, and for those of East Asian descent, 4.8 years. Among the Maori in New Zealand, that age is only 2.7 years. – Those differences cannot be explained only by the maturation of the brain – Patricia Bauer, professor of psychology from Emory University in Atlanta, told New Scientist.

Scientists believe that one of the explanations for this phenomenon is storytelling. Compared to East Asian parents, European and North American parents are more likely to discuss the past with their children using more complex forms of storytelling. As a result, their children have earlier memories. Maori storytelling culture is even richer, with detailed oral histories and a strong focus on the past, leading to even earlier memories.

  • When it comes to autobiographical memory, the early exchange of family memory is important. In North American culture, people are crazy about memoirs and reality TV. It’s all a life story. If society tells you that your memories are important, then you will remember them better – she told New Scientist prof. Ki Wang of Cornell University

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Scientists have compiled a “Galaxy Inventory” using the power of mass

So many galaxies and so little time! What can a busy scientist do? A team of international researchers solved that problem by turning to thousands of amateur volunteers around the world for help describing the universe. The result of that appeal is the “Galaxy List”.

Modern instruments allow us to peer deep into time and space, but on Earth it is still only 24 hours in a day. It’s a conundrum that researchers have faced more and more in recent years, as the volume of telescope images has outstripped attempts to organize them.

Now, an international group of scientists has decided to solve that problem by harnessing the power of the crowd and the Internet to help them deal with the vastness of space.

The result of that endeavor is ‘Galaxy Zoo’, a project dedicated to cataloging the heavens. Its second phase has just been completed.

Lucy Fortson, professor of physics and astronomy at the University of Minnesota in the USA and one of the project leaders explains:

“We find galaxies in two main morphologies or shapes: elliptical and spiral. The complexity of those shapes makes recognizing the differences very difficult for machine algorithms or computers. The best machine algorithm that can distinguish between these shapes, which is available to us, is the human brain. “An Oxford graduate (who worked on the project) and his supervisor were sitting in a pub and thought, ‘You know, if we put this on the Internet, are people going to classify galaxies?'” says Fortson.

The answer was a resounding yes. The first phase of the project, which ended in 2009, asked interested volunteers from around the world to help classify nearly a million galaxies from the near universe. A scientific background was not required. All that was needed were eyes, interest and the ability to register at galaxyzoo.org.

Fortsonova said that it was such a success that the participants asked the organizers to give them more tasks, which the scientists accepted. Now they’ve published their findings in “Galaxy Zoo 2,” a document containing some 16 million classifications made possible by over 83,000 enthusiasts.
The project featured 300,000 galaxies with the clearest images and asked volunteers not only to describe their basic shape, but also to provide a more detailed description: Does the galaxy contain spirals and how many spiral “arms” are present? Does the galaxy have “galactic bars” – long, elongated features that represent concentrations of stars? Is a galaxy merging with another galaxy?

The classifications were recorded between February 2009 and April 2010.

Scientists involved in the project say that the new catalog is ten times larger than any previous one. They estimate that it represents the result of thirty years of work by one researcher.

The data should help scientists answer questions that have long fascinated them.

“One of the biggest questions people are trying to figure out is how our universe evolved and how we got to where we are.” One aspect of this is understanding the formation of galaxies. We know that the personality of a galaxy is shaped by its history, and its history is written in the morphology of the galaxy,”

says Lucy Fortson.

Galaxy Zoo relies on responses from large groups, usually via the Internet, to come up with information or data, and is not the first scientific attempt to discover information about the universe.

For years, researchers into the existence of extraterrestrial life have used computer programs from several universities and research projects to scan the radio waves of space for signs of intelligence.

The rigor of science plays a role in projects based on collecting data from large groups of people. In the Galaxy Zoo 2 project, each galaxy was classified between 40 and 45 times to ensure data accuracy. Fortson said her team used “certain methods and formulas” to weed out the classifications of those participants who “weren’t really paying attention.”

The next step, she says, is to provide volunteers with a Hubble Telescope:

“I compared it with the census. We’ve just done an inventory of the present: We’ve gone round and interviewed all these galaxies and seen the diversity, the rich diversity of galaxies in our immediate universe. Now we want to go back in time and make a list of galaxies as they were formed.”

“By comparing the two censuses, we can learn how galaxies have evolved,”

concludes Fortson.

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Why don’t solar eclipses happen more often? Once a month, for example

On the eve of the partial eclipse of the Sun, on Tuesday, October 25, there is great excitement among amateur astronomers and lovers of this discipline.
In order to observe this wonderful celestial phenomenon, it is necessary to be in a specific place on the planet, and on that specific date when at least three astronomical conditions for the occurrence of an eclipse have been met. And with that, of course, that you are lucky with the clouds.

Every eclipse or eclipse occurs when the Moon is between the Earth and the Sun, so that it partially or “completely” obscures the image of our star, and its shadow falls somewhere on the surface of the planet.
Depending on whether you happened to be right there, in the moon’s shadow or in a much wider, surrounding penumbra, called the umbra and penumbra, you will see the Sun’s disk obscured completely or only partially, as will be the case on Tuesday, October 25.

Unfortunately, most of us will not see the arrival of the umbra just above us and the total eclipse, because it is expected in the year when today’s newborns will be preparing for retirement, that is, on September 3, 2081.

Why is it so? Why don’t solar eclipses happen more often? Once a month, for example, every new moon?

Let’s think about the changes of the moon, about how during a conditionally speaking period of 29 days, the Earth’s satellite changes its shape and names – new, first quarter, full and last quarter. No matter what we call them, the moons would not occur in that way if the Moon did not revolve around the Earth and occupy different positions in relation to the Sun, and therefore be illuminated in various ways. And when it is young, invisible, the Moon is actually unlit for us because it stands between the Sun and the Earth, and its dark side is facing us.

But? But, if once a month, at every new moon, the Moon is between the Sun and the Earth, why doesn’t it block the star for the observers and they don’t see the eclipse?

The answer lies in the position of the Moon’s orbit around the Earth. Perhaps you did not know, but it is not in the same plane as the Earth orbits the Sun. For reasons still insufficiently explained, the Moon’s orbit is tilted at an angle slightly greater than 5 degrees relative to the plane of the Earth’s orbit around the Sun. That is why the shadow cast by the Moon “misses” the planet almost always, except when it is found in those places where the plane of the Moon intersects the plane of the Earth’s orbit. Then all three bodies – the Sun, the Moon and the Earth – will be aligned in a line. And then there are eclipses – solar and, on the other hand, lunar (when the Earth hides the Sun).

During the year, 2 to 5 solar eclipses can occur. However, not all of them are total because everything can happen for a total eclipse, but the Moon at that time can be in its elliptical orbit too far to completely cover the Sun even when it completely “enters” its image. That is why there are several types of eclipses. By the way, they can also be seen in different locations on Earth.

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