Science Day interesting facts. Interesting scientific facts and just interesting discoveries
1. A person needs about 12 hours to fully digest food.
2. Brain cells are the most long-lived cells among the living cells of our body, they can continue to exist throughout life.
3. The human brain is of 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 above 450 ° C.
5. According to scientists, there are about 5,000,000,000 galaxies.
6. Sound travels 4 times faster in air than in water.
7. One of the most random discoveries was the invention of the microwave. This discovery happened after a researcher walked past a ray tube and a bar of chocolate melted in his pocket.
8. When shaking hands, more germs are transmitted than through a kiss.
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 tobish "back".
14. The 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 people have the ability to sleep on their backs.
16. 80% of our brain is made up of water.
17. For the normal functioning of the brain, about a quarter of the total oxygen used by our body is needed.
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 hardworking that they do not even sleep.
21. With two rats per year may increase to 1 million offspring.
22. On the hands, the nails grow much faster than our toenails, about 4 times faster.
23. The highest temperature produced in the laboratory was recorded at around 920,000,000 F (511,000,000 C) for testing the tokamak fusion reactor in Princeton, New Jersey, USA.
24. A hurricane produces energy equivalent to 8000 K. Joules, which is equal to one megaton bomb.
25. Polar bears may look slow due to fat, but they are far from it in real life, because they can run 25 miles per hour and jump to a height of 6 feet.
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 because they have no vocal cords to make noise.
30. Interestingly, the Earth is the only planet in our solar system that has not been named after some Roman or Greek gods.
31. Our Sun may be gigantic, but it still continues to lose 360 \u200b\u200bmillion 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 problems with speech at an early age.
35. Scientists have discovered more than 20 planets outside our solar system.
36. Spacecraft travel very quickly reaching up to 40,000 mph.
37. Can you live without you head? Well, if you cockroach can be controlled 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-handed people are indeed in the minority, as 88% of all people are right-handed.
40. Gravity lenses were predicted by Einstein before they were discovered.
Most of us are far from science and have little sense in this, but will this prevent us from learning interesting scientific facts about the world that surrounds us? A lot of interesting, funny and surprising is hiding from our eyes.
Proven Scientific Facts
Miscellaneous Scientific Facts
Facts about people
A bit about the world around
Space awaits us
- The length of the day on Mars is almost the same as on Earth, they last only 39 minutes.
- The fastest planet in the solar system is Jupiter. He needs only ten hours to completely rotate around the axis.
- The galaxy in which we are located contains about 200-400 billion stars.
- At a decent distance, a spaceship can take a photo of a million square kilometers of our planet in just ten minutes. You can do the same with an airplane in four years.
Summary
The concept of a scientific fact is quite broad, therefore, this category of knowledge can include a lot of information from different areas of knowledge. To recognize a fact as such, it must not only be proved, but also verified. The problem of a scientific fact is that very often this evidence is neglected and presented in a raw form, but science can always distinguish truth from falsehood.
Newborns usually have about 270 bones, most of which are very small. This makes the skeleton more flexible and helps the baby go through the birth canal and grow quickly. As they grow older, many of these bones grow together. The skeleton of an adult is an average of 200-213 bones.
2. The Eiffel Tower grows by 15 centimeters in the summer
The huge structure is built with temperature compensators, thanks to which the steel can expand and contract without any damage.
When the steel heats up, it begins to expand and takes up a larger volume. This is called thermal expansion. Conversely, a drop in temperature leads to a decrease in volume. For this reason, large structures, such as bridges, are built with expansion joints, which allow them to change in size without damage.
3. 20% of oxygen is formed in the Amazon rainforest
Flickr.com/thiagomarraAmazon rainforests occupy 5.5 million square kilometers. The Amazonian jungle produces a significant part of the oxygen on Earth, absorbing a huge amount of carbon dioxide, so they are often called the lungs of the planet.
4. Some metals are so chemically active that they explode even in contact with water
Some metals and compounds - potassium, sodium, lithium, rubidium and cesium - exhibit increased chemical activity, therefore they are able to catch fire lightning upon contact with air, and if they are lowered into water, even explode.
5. A teaspoon of neutron star will weigh 6 billion tons
Neutron stars are the remnants of massive stars, consisting mainly of a neutron core covered with a relatively thin (about 1 km) crust of matter in the form of heavy atomic nuclei and electrons. The nuclei of stars that died during a supernova burst were compressed by gravity. So superdense neutron stars were formed. Astronomers have found that the mass of neutron stars can be comparable to the mass of the Sun, despite the fact that their radius does not exceed 10–20 kilometers.
6. Each year, Hawaii approaches 7.5 cm to Alaska
The earth's crust consists of several huge parts - tectonic plates. These plates are constantly moving with the upper layer of the mantle. Hawaii is located in the middle part of the Pacific Plate, which is slowly drifting northwest to the North American Plate, on which Alaska is located. Tectonic plates move at the same speed as a person’s nails grow.
7. In 2.3 billion years, it will be too hot on Earth for life to be possible on it.
Our planet will eventually become an endless desert, similar to today's Mars. For hundreds of millions of years, the Sun has heated, become brighter and hotter and will continue to do so. In about two billion years or more, the temperature will become so high that the oceans, thanks to which the Earth is suitable for life, will evaporate. The whole planet will turn into a vast desert. As scientists predict, in the next several billion years the Sun will turn into a red giant and completely absorb the Earth - the planet will definitely come to an end.
Flickr.com/andy999 Thermal imagers are able to determine an object from the heat that it emits. And polar bears are experts in keeping warm. Thanks to a thick layer of subcutaneous fat and a warm coat, bears are able to tolerate even the coldest days in the Arctic.
9. It takes light 8 minutes 19 seconds to get from the Sun to the Earth
It is known that the speed of light is 300,000 kilometers per second. But even with such a dizzying speed, it will take time to overcome the distance between the Sun and the Earth. And 8 minutes is not so much on a cosmic scale. It takes 5.5 hours for sunlight to reach Pluto.
10. If you remove the entire interatomic space, humanity will fit in a cube of sugar
In fact, more than 99.9999% of an atom is empty space. An atom consists of a tiny dense nucleus surrounded by a cloud of electrons that proportionally occupy a larger space. This is because electrons move in waves. They can exist only where the crests and troughs of the waves are folded in a certain way. Electrons do not remain at one point; their location can be anywhere within the orbit. And because they occupy a lot of space.
11. Gastric juice can dissolve razor blades
The stomach digests food thanks to caustic hydrochloric acid with a high content of pH (pH) - from two to three. But at the same time, the acid acts on the mucous membrane of the stomach, which, however, is able to quickly recover. The mucous membrane of your stomach is completely renewed every four days.
Scientists have many versions of why this is happening. Most likely: due to the huge asteroids that influenced its course in the past, or due to the strong circulation of air flows in the upper atmosphere.
13. A flea can accelerate faster than a space shuttle
Jumping fleas reach breathtaking heights - 8 centimeters per millisecond. Each jump gives the flea an acceleration of 50 times the acceleration of the spacecraft.
And what interesting facts do you know?
Newborns usually have about 270 bones, most of which are very small. This makes the skeleton more flexible and helps the baby go through the birth canal and grow quickly. As they grow older, many of these bones grow together. The skeleton of an adult is an average of 200-213 bones.
2. The Eiffel Tower grows by 15 centimeters in the summer
The huge structure is built with temperature compensators, thanks to which the steel can expand and contract without any damage.
When the steel heats up, it begins to expand and takes up a larger volume. This is called thermal expansion. Conversely, a drop in temperature leads to a decrease in volume. For this reason, large structures, such as bridges, are built with expansion joints, which allow them to change in size without damage.
3. 20% of oxygen is formed in the Amazon rainforest
Flickr.com/thiagomarraAmazon rainforests occupy 5.5 million square kilometers. The Amazonian jungle produces a significant part of the oxygen on Earth, absorbing a huge amount of carbon dioxide, so they are often called the lungs of the planet.
4. Some metals are so chemically active that they explode even in contact with water
Some metals and compounds - potassium, sodium, lithium, rubidium and cesium - exhibit increased chemical activity, therefore they are able to catch fire lightning upon contact with air, and if they are lowered into water, even explode.
5. A teaspoon of neutron star will weigh 6 billion tons
Neutron stars are the remnants of massive stars, consisting mainly of a neutron core covered with a relatively thin (about 1 km) crust of matter in the form of heavy atomic nuclei and electrons. The nuclei of stars that died during a supernova burst were compressed by gravity. So superdense neutron stars were formed. Astronomers have found that the mass of neutron stars can be comparable to the mass of the Sun, despite the fact that their radius does not exceed 10–20 kilometers.
6. Each year, Hawaii approaches 7.5 cm to Alaska
The earth's crust consists of several huge parts - tectonic plates. These plates are constantly moving with the upper layer of the mantle. Hawaii is located in the middle part of the Pacific Plate, which is slowly drifting northwest to the North American Plate, on which Alaska is located. Tectonic plates move at the same speed as a person’s nails grow.
7. In 2.3 billion years, it will be too hot on Earth for life to be possible on it.
Our planet will eventually become an endless desert, similar to today's Mars. For hundreds of millions of years, the Sun has heated, become brighter and hotter and will continue to do so. In about two billion years or more, the temperature will become so high that the oceans, thanks to which the Earth is suitable for life, will evaporate. The whole planet will turn into a vast desert. As scientists predict, in the next several billion years the Sun will turn into a red giant and completely absorb the Earth - the planet will definitely come to an end.
Flickr.com/andy999 Thermal imagers are able to determine an object from the heat that it emits. And polar bears are experts in keeping warm. Thanks to a thick layer of subcutaneous fat and a warm coat, bears are able to tolerate even the coldest days in the Arctic.
9. It takes light 8 minutes 19 seconds to get from the Sun to the Earth
It is known that the speed of light is 300,000 kilometers per second. But even with such a dizzying speed, it will take time to overcome the distance between the Sun and the Earth. And 8 minutes is not so much on a cosmic scale. It takes 5.5 hours for sunlight to reach Pluto.
10. If you remove the entire interatomic space, humanity will fit in a cube of sugar
In fact, more than 99.9999% of an atom is empty space. An atom consists of a tiny dense nucleus surrounded by a cloud of electrons that proportionally occupy a larger space. This is because electrons move in waves. They can exist only where the crests and troughs of the waves are folded in a certain way. Electrons do not remain at one point; their location can be anywhere within the orbit. And because they occupy a lot of space.
11. Gastric juice can dissolve razor blades
The stomach digests food thanks to caustic hydrochloric acid with a high content of pH (pH) - from two to three. But at the same time, the acid acts on the mucous membrane of the stomach, which, however, is able to quickly recover. The mucous membrane of your stomach is completely renewed every four days.
Scientists have many versions of why this is happening. Most likely: due to the huge asteroids that influenced its course in the past, or due to the strong circulation of air flows in the upper atmosphere.
13. A flea can accelerate faster than a space shuttle
Jumping fleas reach breathtaking heights - 8 centimeters per millisecond. Each jump gives the flea an acceleration of 50 times the acceleration of the spacecraft.
And what interesting facts do you know?
Interesting scientific facts
1. Pseudo-blindness is a phenomenon in which blind people have a physiological response to visual stimuli (for example, an evil face), despite the fact that they are not able to see them.
2. If a thimble is filled with matter from a neutron star, it will weigh almost 100 million tons.
3. If people used Newton's formulas instead of Einstein's theory of relativity, GPS calculations would differ by several kilometers.
4. The coldest place in the known Universe is on Earth in the laboratory. Scientists managed to freeze atoms using laser cooling. This led to temperatures within the billionth degree of absolute zero.
5. The human brain has more synapses than stars in the Milky Way.
6. If it were possible to remove all the empty space in the atoms, then Everest could be placed in a glass.
7. The compound that gives raspberries a taste is found throughout our galaxy. You understand correctly, the Milky Way tastes like raspberries.
8. According to the Hafele-Keating experiment, time runs faster when flying westward than eastward (relative to the center of the earth).
New interesting facts
9. All the cells in your body have been divided since life began on Earth. And all this division will end with your death, with the exception of the cells that you pass on to your descendants (1 per child) and some circumstances (for example, organ donation).
10. The only reason you can read this article is because hundreds of kilometers of fiberglass cables lie at the bottom of the ocean.
11. The lubricant in your lap is one of the most slippery of substances known to man.
12. When you recall an event in the past, you are not recalling the event itself, but rather the last time you recall it. In other words, you have a memory of memories. For this reason, people's memories are often inaccurate.
13. Pluto has made only 1/3 of the revolution since it was discovered.
14. If the Earth were the size of a billiard ball, it would be smoother (there would be less fluctuation between the high and low points on its surface).
15. Human sweat is odorless, but since bacteria feed on it, the smell comes from the products of their waste.
Amazing facts
16. Your lungs have the same surface area as a tennis court.
17. There is no way to scientifically prove that we are not part of computer simulation.
18. The human body emits more heat per unit volume than the sun.
19. Not one of your ancestors died before he successfully bred offspring.
20. The stomach acid is strong enough to dissolve zinc.
