Here are a number of interesting and surprising facts about science, which include the study of our Universe, as well as touch on the topic of the elixir of immortality and some disturbing moments.

What is so interesting about science?

The world of science has inexhaustible information, but much more information is still inaccessible to human minds. However, we strive to penetrate the secrets of the universe, which leads us to various discoveries, many of which are extremely fascinating and amazing.

What interesting facts about science of various directions can be cited as an example today, so much so that each reader finds something interesting in each of them? Let's try to talk about the most amazing and relevant.

Anatoly Brushkov, head of the department of geocryology at one of the Russian universities, introduced himself into the body of an ancient bacterium, once found in Siberia in a frozen state. As he assures, it contains the gene responsible for longevity. It was found in the region of Yakutia, whose inhabitants are distinguished by a high life expectancy.

The scientist believes that bacterial cells are endowed with special mechanisms that allow them to significantly prolong their existence. Brushkov insists that the experiment, set on itself, will be successful, which will once be confirmed by the extension of his life. Although, how can we know how long he would have lived without this bacterium?

Are we alone in the universe?

Interesting facts about science in the field of astronomy often shock the world. Some time ago, during joint research conducted by German and American scientists, it was possible to detect radio signals sent from space. Researchers have no doubt that they come from outside the solar system, and the energy of the source of these signals is conventionally equated to the energy generated by the Sun during the day.

A variety of hypotheses are being built on this basis, and the main one is the opinion that it was an attempt by an extraterrestrial civilization to establish contact with us. Or the signals are the result of certain processes occurring in space, about which nothing is known to modern science.

Scientists are also confident that the source is located somewhere within our galaxy, and not outside it, and in the near future attempts will be made to determine more accurate coordinates.

Black holes or spatial gates?

Everyone has heard about the existence of black holes in the universe. These are substances that have a large mass and energy, and absorb all matter into themselves, including any cosmic bodies.

Renowned physicist Stephen Hawking insists that these holes can act as a gateway from one universe to another. However, according to the scientist, a traveler who has entered such a gate may end up anywhere in some other universe, but he will never be able to return to this one.

Previously, black holes were considered a dead end, an element of the end of the world. Now Hawking is of the opinion that this is a one-way tunnel with a one-way ticket. Such a hypothesis is, in fact, an attempt to answer the question of scientists, where bodies and objects, including sunlight, can disappear. After all, this contradicts the earthly laws of physics and the main one: energy does not come from nowhere and does not disappear into nowhere.

endangered bees

Interesting facts about science emerge in the world of fauna. Scientists suggest that within 20 years, bees may completely disappear on our planet. Already, the process of their disappearance is dynamically progressing. For example, in Russia, the number of these insects has almost halved.

The explanation for this, the researchers call the deterioration of the environmental situation. In addition, the rapid development of telecommunication systems affects the form of radio emissions, which also makes it impossible for many species of organisms to exist on Earth.

How much is the Earth worth?

An interesting thought occurred to one American astrophysicist. He considered that the mass of the planets of the solar system and their sizes are no longer of interest to anyone, but the cost in monetary terms is new and relevant. In the course of research, GregLaughlin came to the conclusion that our planet is the most expensive of them.

Among all the elements known to science under normal conditions, only two are found in a liquid state - bromine and mercury.

The Swedish chemist Karl Scheele can be called the record holder for the number of chemical elements discovered by him. Thanks to him, we learned about the existence of tungsten, barium, molybdenum, manganese, chlorine, fluorine and oxygen. Scheele is followed by his compatriots Karl Mosander and Jakob Berzelius, the Englishman Humphrey Davy and the Frenchman Paul Lecoq de Boisbaudran. Each of these chemists discovered four elements. The share of the above scientists accounts for about 1/4 of all currently known elements.

In the history of chemistry, there is a list of false discoveries of chemical elements, which includes 250 names. Thus, the discovery of more than 100 rare earth elements was announced, of which only 15 correspond to the truth.

Two elements were initially detected in the solar atmosphere using spectral methods, and only after that they were discovered in terrestrial materials. We are talking about technetium and helium.

The prevalence of chemical elements on our planet differs significantly from the distribution in the Universe. For example, silicon and oxygen lead on Earth, and helium and hydrogen lead in space.

In the process of boiling, water molecules move at a speed of 650 m/s.

The service life of plastic bearings is an order of magnitude longer than babbit bearings. Plus, they're eight times cheaper, and they're lubricated with water instead of oil.

Capron is considered an excellent substitute for non-ferrous metals. Bushings made of kapron, bearings, parts for machine tools, presses and textile machines do not require lubrication, are corrosion resistant, have a low coefficient of friction, are silent, much more durable and lighter than metal counterparts. In addition, they have a relatively low cost.

Nylon thread is 10 times more wear-resistant than cotton and 2.5 times stronger than silk. The thread, whose thickness is 1 mm, is able to withstand the weight of an adult (up to 75 kg).

To produce 100 tons of natural rubber, 100 people must work on the plantation for five years.

The cost of artificial leather is 15-20 times lower than natural. Labor costs for its production are almost a hundred times less.

Chemists have created a new fiber - vinol. It absorbs moisture like cotton. Vinol thread can be used in surgery, it dissolves without a trace in the human body a few hours after surgery. Vinol will give durable tires to airplanes and cars. And the fishermen will receive strong ropes and fishing tackle. Vinol does not rot and is not afraid of moisture.

Until the second half of the 17th century, Venice threatened the death penalty to anyone who would reveal the secrets of the production of mirrors. The Venetian state had a monopoly on the manufacture of mirrors.

Alexander Mikhailovich Butlerov - the creator of the theory of the chemical structure of organic compounds, a brilliant experimenter and an outstanding theorist, also known as the founder of rational Russian beekeeping. Beekeeping was not just a hobby for him. For writing the book “Bee, her life. Rules of sensible beekeeping” he was awarded a prize from the Free Economic Society. In the spring of 1882, at the All-Russian Exhibition held in Moscow, Butlerov organized an exemplary apiary, where he personally acted as a consultant-guide.

The ancient Babylonian mathematicians, who lived two millennia BC. e., there were tables for calculating volumes and areas, negative numbers, a symbol for zero and a multiplication table. In addition, they already then solved equations of the fourth degree with almost the same methods that are used now. They knew about the so-called Pythagorean theory.

The Armenian scientist, mathematician of the 6th century David the Invincible compiled the first ever textbook on arithmetic problems. One of the copies of this problem book is still preserved in the Yerevan repository of ancient manuscripts.

The first mention of the mathematical signs "plus" and "minus" is found in a textbook on arithmetic by Johann Widmann, dated 1489. Until that moment, these signs were designated by the initial letters of their names.

The idea to denote decimal fractions with a comma belongs to the French mathematician Francois Vieta.

The first mention of the famous theorem on the sides of a right triangle is found in Babylonian cuneiform texts written 1200 years before the advent of Pythagoras.

The famous French scientist Alexi Clairaut studied higher mathematics at the age of ten, made his first scientific discovery at the age of twelve, and by the age of eighteen became an adjunct at the Paris Academy of Sciences.

The eminent Italian scientist Bonaventura Cavalieri suffered from gout. During the next attack of the disease, he diligently studied mathematics, and the pain receded.

Eight centuries BC, on the sides of the imperial throne, on which Theophilus sat, golden statues of lions were installed. When the emperor ascended the throne, they stood up, growled and again fit into place. Apparently, the ancient mechanics managed to make excellent automata.

In the Roman Colosseum, they found a cavity in which a giant elevator was once installed to lift wild animals and gladiators from the dungeons to the arena. The movement of the elevator was carried out with the help of a gate, on which 60 people worked.

For 48 years, every 6 weeks, George Westinghouse patented his new invention.

In the writings of the Greek writer Philo of Byzantium, who lived more than two thousand years ago, the oldest description of a water pump was found. However, he did not describe the first, but only an improved double-acting pump.

In order to unravel the mystery of the electromagnet, Faraday had to constantly carry a model of an electromagnet in his pocket for nine years and give it different positions, concentrating on the solution.

Mu is an Indian unit of distance, meaning the limits of audibility of a cow's lowing.

In some cases, the sound can not only be heard, but also seen. So, one Englishman, standing on a hill, happened to see a long narrow shadow moving towards him through the whole valley. As soon as she reached him, the Englishman felt a strong push and heard a powerful explosion. Subsequently, it turned out that a few miles from where he was standing, there was an explosion of a gunpowder warehouse. The blast wave compressed the air so that it began to cast a shadow.

In 1500, a Chinese official named Wang Hu decided to use a rocket for human flight for the first time. The aircraft he invented looked like a seat that two huge dragons had to carry with the help of 47 firework rockets. This attempt was unsuccessful and ended in the death of its inventor.

The term rocket appeared in the 19th century and comes from the word "rock-ketta", which in Italian means a tube, a spindle.

During the time that a passenger of a modern high-speed aircraft lights a cigarette, he will have time to fly through the air 6 km, and during a three-course meal - about 800 km.

In the tenth book of Vitruvius, dated to the 1st century BC. e., there is a description of "taxi". After passing a certain distance, a mechanism connected with the axis of the carriage dropped a pebble into a bronze bowl. The distance traveled was determined by the number of pebbles. Such carriages were put into practical use among the population of that time.

On many ancient Greek and Roman roads, traces on which carriages traveled and arrows on which oncoming vehicles could pass have survived to this day.

In an ordinary wristwatch, there are parts, a thousand pieces of which weigh only 1 g.

The first nylon watches were made in England. Their gears, axles and springs are not afraid of shaking and dampness. New watches are not inferior in accuracy to ordinary, metal ones.

In 1761, the mechanic Garrison received a huge bonus of 10,000 pounds from the British authorities for being able to bring the accuracy of the chronometer to 30 seconds per day. To date, such accuracy is characteristic of ordinary wristwatches, mass-produced by watch factories.

For the first time blotting paper was invented in the middle of the last century. This invention is accompanied by a curious story. A worker in one of the English paper mills forgot to add glue to the paper pulp. For his oversight, he lost his job. But later it turned out that non-glued paper perfectly absorbs moisture. The enterprising owner of the factory did not fail to take advantage of this property and converted the entire factory production to the production of blotters, which found a large market. Unglued paper replaced the sifted sand, which was sprinkled over everything written in ink.

To compare two different calculation methods, a computer machine calculated the number pi to a hundred thousandth decimal place. This smart machine spent about 8 hours. It would take a person about 30 years to do the same job.

Inventor Emil Berliner produced the world's first record in 1888. The first record is still kept in the National Museum in Washington. In the center of the records of that time there were two holes, they were played from the middle to the edges. It was possible to record only on one side of the disc, and the name was on the reverse side. In the first half of the 20th century, chocolate records were sold.

The flame temperature of an ordinary primus stove can reach 2000 degrees.

About a century and a half ago, match heads were made from a mixture of glue, sugar and bartholite salt. Similar matches were lit by dipping them in a container with sulfuric acid.

While you strike a match on the box, the match head heats up to 200 degrees.

The metallic flint used in lighters does not contain a single gram of flint. 70% of its composition is cerium and 30% is ordinary iron. Cerium provides the appearance of sparks that ignite a wick moistened with gasoline.

At the tip of the needle of a conventional sewing machine, a pressure of about 5000 atm develops.

In Peru, on the ruins of one of the ancient palaces, they found a telephone, which is about a thousand years old. It was made from two gourd flasks tied with tight twine.

In the Beijing Temple of Heaven there is a wall erected in 1530. It is interesting because at the opposite end of the wall you can clearly hear everything said into it. The length of the wall is about 200 m and the height is 6 m.

Interesting scientific facts and just interesting discoveries - a small selection of amazing facts that pleasantly surprise.

1. It takes about 12 hours for a human to fully digest food.
2. Brain cells are the longest-lived cells among the living cells of our body, they can continue to exist throughout life.
3. The human brain comes in different sizes, and the largest human brain weighed 2.3 kg.
4. Venus is the hottest planet in our solar system with a surface temperature of over 450°C.
5. According to scientists, there are about 50000000000 galaxies.
6. Sound travels 4 times faster in air than in water.
7. One of the most accidental discoveries was the invention of the microwave oven. This discovery came after the researcher walked past the ray tube and the chocolate bar melted in his pocket.
8. Shaking hands transfers more germs than kissing.
9. The moon is very dry, it is a million times drier than the well-known Gobi desert.
10. The highest temperature on Earth that was measured in Libya in 1922 was 58°C.
11. The lowest recorded temperature on our planet was -89.6°C. This temperature was measured in Antarctica in 1983.
12. Not all animals on our planet have brains, for example, starfish do not have a brain.
13. Kangaroos do not know how to walk in the opposite direction, i.e. "back".
14. Eyes always remain the same size from the moment you are born until the moment you die, unlike our ears and nose, which are constantly growing throughout our lives.
15. Only humans have the ability to sleep on their backs.
16. 80% of our brain is water.
17. For normal functioning, the brain needs about a quarter of the total amount of oxygen used by our body.
18. Crocodiles not only swallow their unfortunate victims, but also stones to dive deeper.
19. Sharks are completely protected from cancer since this disease has never been recorded.
20. Ants are so industrious that they don't even sleep.
21. From two rats in a year, up to 1 million offspring can increase.
22. Fingernails grow much faster than our toenails, about 4 times faster.
23. The highest temperature produced in the lab was about 920,000,000 F (511,000,000 C) at a tokamak fusion reactor test in Princeton, New Jersey, USA.
24. A hurricane produces energy equivalent to 8,000 kilojoules, which is equal to one megaton bomb.
25. Polar bears may look slow because of their fat, but in real life this is far from the case as they can run 25 miles per hour and jump 6 feet high.
26. Mosquitoes love women more than men because they are very similar to the smell of estrogen.
29. Have you ever wondered why giraffes are such quiet animals it's because they don't have vocal cords to make noise.
30. Interestingly, the Earth is the only planet in our solar system that was not named after some Roman or Greek gods.
31. Our Sun may be gigantic, but it still continues to lose 360 ​​million tons of material every day.
32. Have you ever wondered how much a liter of water weighs, the answer is 8.34 pounds (3.8 kg).
33. Hot water freezes faster than cold water.
34. Albert Einstein had speech problems at an early age.
35. Scientists have discovered more than 20 planets outside our solar system.
36. Spacecraft move very fast, reaching up to 40,000 mph.
37. Can you live without your head? Well, if you are a cockroach you can manage somewhere around 9 days.
38. The average male brain is larger than the average female brain (1.4 kg to 1.25 kg).
39. Left-handers are indeed in the minority, as 88% of all people are right-handed.
40. Gravitational lenses were predicted by Einstein before they were discovered.

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Some parents say to the baby: "You are the light of my life." But did you know that if you were light, you would circle the entire globe 7.5 times per second! If you became sound, you could fly around the Earth in 4 hours! If we lived on Jupiter, our day would consist of only 9 hours. It’s good that on Earth a day lasts 24 hours, because we need to do so much during the day! These are just a few entertaining scientific facts that can interest both an inquisitive child and an adult.

What is science?

Science is an organized and consistent study that includes observation, collection of scientific facts, experiments, verification of results and explanation of natural and man-made phenomena. This is an area that gives us the opportunity to better understand the world around us and create good things for the benefit of man and all living beings.

Ordinary scientific facts

Now that you know what we are talking about, here are some interesting scientific facts:

• If you stretch the chain of human DNA, its length will be the distance from Pluto to the Sun and back.
• When a person sneezes, the speed of the air they exhale is about 160 km/h.
• A flea can jump to a height that is 130 times its own height. If the flea were a 1.80 m tall human, it could jump 230 m.
• An electric eel generates an electric current of 650 volts. Touching him is the most powerful shock that a person can experience.
• It takes light particles photons 40,000 years to travel from the core of the Sun to its surface, and only 8 minutes to reach the Earth.

Scientific facts about the earth

Earth is our home. To take care of her, we need to know important information about her:

• The age of the Earth is from 5 to 6 billion years. The Moon and the Sun are about the same age.
• Our planet is made up primarily of iron, silicon, and a relatively small amount of magnesium.
• Earth is the only planet in the solar system that has water on its surface, and the atmosphere is 21% oxygen.
• The surface of the Earth is made up of tectonic plates placed on the mantle - a layer located between the Earth's core and the surface. This structure of the earth's surface explains earthquakes and volcanic eruptions.
• About 8.7 million species of living organisms live on Earth. Of these, 2.2 million species live in the ocean, while the rest live on land.
• ¾ of the Earth's surface is covered with water. When astronauts first saw Earth from space, they saw mostly water. Hence the name "blue planet".

Facts about the environment

Why do the seasons change? What happens to trash after we throw it away? What causes the weather to be hot or cold? This and much more children learn in the lessons of natural history at school. Consider some of the facts that convince us of what a beautiful planet we live on.

• Plastic completely decomposes in the ground in 450 years, and glass in 4,000 years.
• Every day, 27,000 trees in the world are used just to make toilet paper.
• 97% of all water on Earth is salty and unusable. 2% of water is in glaciers. Therefore, only 1% of water is usable.
• The meat processing industry contributes the most to global warming. In second place among global problems is deforestation. About 68% of existing plant species are likely to become extinct in the near future.
• The population of the Earth is more than 7 billion people. This figure is expected to reach 8 billion by 2025.
• Unfortunately, 99% of the existing species of living organisms, according to scientists, will become extinct.

Interesting facts about animals

The animal kingdom is beautiful and amazing. It has tame otters, powerful eels, singing whales, giggling rats, sex-changing oysters, and many other equally amazing representatives. Here are some facts about animals that your child will surely enjoy:

• Octopuses have three hearts. An even stranger fact: lobsters have their urinary tracts on their faces, while turtles breathe through their anus.
• In seahorses, males produce offspring, not females.
• The kakapo parrot has a strong, pungent odor that attracts predators. That is why kakapo are under the threat of extinction.
• A squirrel plants more trees than the average person in a lifetime. How can this be? The fact is that squirrels hide acorns and nuts underground, and then forget exactly where they hid them.
• Lions are hunted mainly by lionesses. Lions intervene only when necessary.

Interesting Plant Facts

Plants green our planet, produce oxygen, make the Earth habitable. Trees and plants are probably the most useful among the living inhabitants of the Earth. Here are some interesting facts about plants:

• Like humans, plants recognize other plants of their species.
• In total, there are more than 80,000 edible plants on Earth. Of these, we eat about 30.
• Humanity is rapidly destroying forests. About 80% of all forests have already been destroyed.
• The oldest tree in the world (sequoia) is located in the USA, in the state of California. His age is 4843 years.
• The height of the tallest tree in the world is 113 m. It is also located in California.
• The largest tree in the world is an aspen growing in the USA, in the state of Utah. Its weight is 6,000 tons.

Facts about space

The sun, stars, planets, the Milky Way, constellations, and everything in the universe is located in vacuum space. We call it space. Here are some interesting facts about him:

• The Earth is tiny compared to the Sun, which is 300,000 times larger.
• The entire cosmos is absolutely silent, because sound does not propagate in a vacuum.
• Venus is the hottest planet in the solar system. The temperature on the surface of Venus is 450°C.
• The force of gravity changes the weight of a person on different planets. For example, gravity on Mars is lower than on Earth, so an 80 kg person on Mars would only weigh 31 kg.
• Since there is no atmosphere or water on the Moon, nothing can erase the traces of the astronauts who set foot on its surface. Therefore, traces will probably remain here for another hundred million years.
• The temperature of the Sun's core, the closest star to Earth, is 15 million degrees Celsius.

Facts about famous scientists

For a long time, people thought that the Earth was flat, that the change of seasons depended on the mood of the gods, and that evil spirits caused illness. This continued until the great scientists proved otherwise. Without them, we would still be living in ignorance.

• Albert Einstein was a genius, but his talents were revealed rather late. After the death of the scientist, his brain was the object of numerous studies.
• Nicolaus Copernicus refuted the theory that the Earth is the center of the universe. He developed a model of the solar system, in the center of which is the Sun.
• Leonardo da Vinci was not only an artist. He was also an outstanding mathematician, scientist, writer and even a musician.
• Archimedes invented the law of fluid displacement while taking a bath. It's funny that, according to legend, he jumped out of the bath with a cry of "Eureka!" He was so excited that he forgot that he had no clothes on.
• Marie Curie, the woman chemist who discovered radium, was the first person in the world to win the Nobel Prize twice.

Scientific facts from the world of technology

Technology is the engine of progress. We are so dependent on technology in everyday life that it is even scary. We offer some interesting facts about the technical devices that we encounter on a daily basis:

• The first computer game appeared in 1967. It was called "brown box" (translated from English - "brown box"), because that's what it looked like.
• The world's first computer, ENIAC, weighed over 27 tons and occupied an entire room.
• The Internet and the World Wide Web are not the same thing.
• Robotics is one of the most relevant scientific fields today. However, back in 1495, Leonardo da Vinci drew the world's first diagram of a robot.
• The Camera Obscura is a prototype camera that influenced the development of photography. It was used in Ancient Greece and China for projecting images onto a screen.
• There is an interesting technology in which plant waste is used to generate methane, which, in turn, can be used to generate electricity.

Scientific facts from the engineering industry

Engineering helps create beautiful things - from houses and cars to electronic gadgets.

• The highest bridge in the world is the Millau Viaduct in France. It is located at an altitude of 245 m, supported by beams suspended on cables.
• The Palm Islands in Dubai can be called a modern wonder of the world. These are man-made islands floating on the water.
• The world's largest particle accelerator is located in Geneva. It was built to assist the research of more than 10,000 scientists and is located in an underground tunnel.
• The Chandra Space Observatory is the world's largest X-ray telescope. It is also the largest satellite launched into space.
• Today, the most ambitious project in the world is the New Valley in Egypt. Engineers are trying to turn millions of hectares of desert into farmland. Imagine what would happen if we could green the Earth in the same way! Our planet would return to its original purity!

Science is a wonderful field of study that inspires many people. All you need to do is get your child interested in it. And who knows, maybe your child will grow up to be a second Einstein.

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You can't argue with the fact. But on the other hand, there are many delusions in the world, there are a huge number facts about the simplest and seemingly well-studied things, phenomena and events that seem unreal to us. It is these unknowns and Interesting Facts we offer in this collection.

one. " hellish organ»

In 1741, the outstanding Russian designer Andrei Konstantinovich Nartov (1680-1756) created the most rapid-fire gun. They called it the "Infernal Organ", the design was a system of 44 small mortars mounted on a rotating carriage. While one part of the mortar fired a volley, the rest were loaded, then the wheel turned and a new volley followed.
Such guns were used by Pugachev's detachments, therefore, the rapid-fire system was also called the "Pugachev gun" in a different way.

2. royal tattoo

In 1844, dignitaries were preparing the body of King Charles XIV Johan of Sweden for burial. And they were amazed to see the tattoo "Death to Kings" on the body.
Here it must be recalled that the founder of the Bernadotte dynasty, which still rules in Sweden today, was born in the family of a Bearn lawyer in the city of Pau in Gascony. Jean-Baptiste Bernadotte began his military career to improve the financial situation in the Royal Infantry Regiment. Excellent military ability and most expensive - experience - allowed him to quickly advance after the French Revolution. During the reign of Napoleon, General Bernadotte was given command of a corps, and in 1804 he became marshal of the Empire.
After the news of Bernadotte's humane treatment of the Swedish prisoners captured in Grass, his popularity in the country grows incredibly. At this time, the childless King Charles XIII rules in Sweden. In fact, the power belonged to the aristocrats because of the dementia of the king. Therefore, Bernadotte was elected heir to the Swedish throne.
In 1818, after the death of Charles XIII, Jean-Baptiste Bernadotte ascended the throne under the name of Charles XIV Johan. And the question of what is the best way to remove a tattoo did not bother him.

3. Why chamomile?

Chamomile became so called only a little over 200 years ago. This name came from Polish, and is a distorted Latin word romana, that is, "Roman". The Poles called this flower in the middle of the 16th century "Romanov color". "Chamomile" became a diminutive form and was first used under this name in the recipes of the late 18th century by the Russian agronomist A. G. Bolotov.
In Latin, chamomile is called Matricaria, which translates as "uterine grass", since the plant was then most a popular remedy for women's diseases. This name was used for the first time by the Swedish physician and botanist Albrecht von Haller, but in Pliny the Elder's Natural History, chamomile appears under the name Chamaemellon.

4. Arab-Israeli conflict

Interesting that there are 60 Muslim countries in the world and only 1 Jewish. The country's main city, Jerusalem, has been the Jewish capital for over 3,000 years. The Kingdom of Jerusalem was founded here by the crusaders in 1099. In 1187, the city was captured by Salah ad-Dinin, and Acre was the last to fall in 1291. Since 1260, Palestine passes into the possession of the Mamluk dynasty. But at the same time, the city was never used by them as a capital, Islamic leaders did not visit it at all.
Interesting fact, but Jerusalem is never mentioned in the Koran, but in the Jewish Tanakh it is mentioned 700 times. And it is in the direction of Jerusalem that Jews pray, and Muslims turn to Mecca.
If in 1854 Jews made up more than 60% of the population in Jerusalem, then in 1922 they were forbidden to settle in more than 77% of the Palestinian territory.

5. toilet finger

The bats cute and scary at the same time, everyone perceives these night hunters differently. Everyone knows that in mice, the fingers of the upper limbs have transformed into a kind of frame, on which membrane-wings are stretched. But at the same time, the thumb with a strong claw, which mice use when climbing, remained. This finger has other uses as well.
That's because interesting, if mice usually hang upside down in a free position, then how does the disposal of waste products occur? The simplest procedure is not so easy to implement. And this is where the same thumb, which is called the “toilet”, is used. The mouse simply clings to the surface with these fingers, turns over and performs all the necessary actions without dirtying its fluffy fur.

6. Nutritional supplements

Natural food is virtually disappearing from our tables. Even seemingly unprocessed vegetables and fruits can contain many different elements that are unusual for them, which got into the product as a result of treatments, fertilizers, etc. What can we say about all kinds of semi-finished products and other "victims" of the processing industry. An interesting fact is that even formally harmless additives are not recommended by experts for children.
All nutritional supplements have a specific label. So food colorings encode numbers from E100 to E182. To increase the shelf life, preservatives are used (E200 - E299). Antioxidants have a similar effect, which protect products from spoilage by slowing down oxidation processes (E300 - E399). Stabilizers (E400 - E499) and emulsifiers (E500 - E599) are used to give products a presentation. Another method of improving the attractiveness of a product is the addition of flavors and flavor enhancers coded with numbers from E600 to E699.