Science day interesting facts. Interesting scientific facts and just interesting discoveries
1. A person needs about 12 hours to completely 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 happens 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 billion 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. The discovery came after the researcher walked past a ray tube and a bar of chocolate melted in his pocket.
8. A handshake carries more germs than a kiss.
9. The moon is very dry, it is a million times drier than the famous Gobi desert.
10. The most heat 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, sea stars do not have a brain.
13. Kangaroos do not know how to walk in the opposite direction, you mean "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 life.
15. Only humans have the ability to sleep on their backs.
16. 80% of our brain is made up of water.
17. For normal functioning, the brain needs about a quarter of the total 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 hardworking that they don't even sleep.
21. From two rats a year can increase to 1 million offspring.
22. Our fingernails grow much faster than our toenails, about 4 times faster.
23. The highest temperature produced in a laboratory was recorded at about 920,000,000 F (511,000,000 C) during testing of a 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 because of their fat, but they are real life far from it, as they can run 25 miles an hour and jump 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 is because they do not 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 in 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 are a cockroach you can manage for somewhere around 9 days.
38. The average male brain is larger than the average female brain (1.4 kg to 1.25 kg).
39. Lefties are indeed in the minority, as 88% of all people are right-handed.
40. Gravitational lenses were predicted by Einstein before their discovery.
Most of us are far from science and do not know much about this, but does this prevent us from learning scientific Interesting Facts about the world that surrounds us? Many interesting, funny and surprising things are hidden from our eyes.
Proven scientific facts
Various scientific facts
Human Facts
A little about the world around
Space awaits us
- The length of a day on Mars is almost the same as on Earth, they are only 39 minutes long.
- The fastest planet Solar system is Jupiter. It only needs ten hours to fully rotate around the axis.
- The galaxy in which we are located contains about 200-400 billion stars.
- At a decent distance spaceship can take a photo of a million square kilometers of our planet's area in just ten minutes. You can do the same with an airplane in four years.
Outcomes
The concept of a scientific fact is quite broad, therefore, a lot of information from different fields of knowledge can belong to this category of knowledge. To recognize a fact as such, it must not only be proved, but also verified. The problem with scientific fact is that very often this evidence is neglected and presented in its raw form, but science can always tell the 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 pass through the birth canal and grow quickly. Many of these bones grow together as they grow older. An adult skeleton has an average of 200-213 bones.
2. The Eiffel Tower grows 15 centimeters in summer
The huge structure is built with temperature compensators, thanks to which the steel can expand and contract without any damage.
As the steel heats up, it begins to expand and takes up more 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 that allow them to change in size without damage.
3.20% oxygen is generated in the Amazon rainforest
Flickr.com/thiagomarraThe Amazon rainforest covers 5.5 million square kilometers. The Amazon jungle produces a significant portion of the oxygen on Earth, absorbing a huge amount carbon dioxide therefore they are often called the lungs of the planet.
4. Some metals are so reactive that they explode even on contact with water
Some metals and compounds - potassium, sodium, lithium, rubidium and cesium - exhibit increased chemical activity, so they can catch fire with lightning speed on contact with air, and if they are immersed in water, even explode.
5. A teaspoon of a 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 in a supernova explosion were compressed under the influence of gravity. This is how superdense neutron stars were formed. Astronomers have found that the mass of neutron stars can be comparable to the mass of the Sun, while their radius does not exceed 10–20 kilometers.
6. Every year Hawaii approaches Alaska by 7.5 cm
The earth's crust consists of several huge parts - tectonic plates. These plates are constantly moving with the top layer of the mantle. Hawaii is located in the middle of the Pacific Plate, which slowly drifts northwestward toward the North American Plate, on which Alaska is located. Tectonic plates move at the same speed as human nails grow.
7. In 2.3 Billion Years, Earth Will Be Too Hot for Life
Our planet will eventually become an endless desert, similar to today's Mars. For hundreds of millions of years, the Sun has been heating up, getting brighter and hotter and will continue to do so. In more than two billion years from now, temperatures will be so high that the oceans that make the Earth habitable will evaporate. The entire planet will turn into an endless desert. As scientists predict, in the next few billion years, the Sun will turn into a red giant and completely swallow the Earth - the planet will definitely come to an end.
Flickr.com/andy999 Thermal imagers are able to identify an object by the heat it emits. And polar bears are experts at keeping warm. Thanks to a thick layer of subcutaneous fat and a warm fur coat, bears are able to endure even the coldest days in the Arctic.
9. Light will take 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 at such a dizzying speed, it will take time to cover the distance between the Sun and Earth. And 8 minutes is not so much on a cosmic scale. Sunlight takes 5.5 hours to reach Pluto.
10. If you remove all interatomic space, humanity will fit in a sugar cube
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, which proportionally take up more space. This is because electrons move in waves. They can exist only where the crests and troughs of waves fold in a certain way. The electrons do not stay at one point, their location can be anywhere within the orbit. And therefore they take up a lot of space.
11. Stomach juice can dissolve razor blades
The stomach digests food thanks to caustic hydrochloric acid with a high pH (hydrogen index) - from two to three. But at the same time, acid also affects the gastric mucosa, which, however, is able to quickly recover. Your stomach lining is completely renewed every four days.
Scientists have many versions of why this is happening. The most likely: because of the huge asteroids that influenced its course in the past, or because of the strong circulation of air currents in upper layers atmosphere.
13. A flea can accelerate faster than a space shuttle
Jumping fleas reach mind-boggling heights - 8 centimeters per millisecond. Each jump gives the flea an acceleration that is 50 times the acceleration of the spacecraft.
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 pass through the birth canal and grow quickly. Many of these bones grow together as they grow older. An adult skeleton has an average of 200-213 bones.
2. The Eiffel Tower grows 15 centimeters in summer
The huge structure is built with temperature compensators, thanks to which the steel can expand and contract without any damage.
As the steel heats up, it begins to expand and takes up more 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 that allow them to change in size without damage.
3.20% oxygen is generated in the Amazon rainforest
Flickr.com/thiagomarraThe Amazon rainforest covers 5.5 million square kilometers. The Amazonian jungle produces a significant portion of the oxygen on Earth by absorbing huge amounts of carbon dioxide, which is why they are often called the lungs of the planet.
4. Some metals are so reactive that they explode even on contact with water
Some metals and compounds - potassium, sodium, lithium, rubidium and cesium - exhibit increased chemical activity, so they can catch fire with lightning speed on contact with air, and if they are immersed in water, even explode.
5. A teaspoon of a 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 in a supernova explosion were compressed under the influence of gravity. This is how superdense neutron stars were formed. Astronomers have found that the mass of neutron stars can be comparable to the mass of the Sun, while their radius does not exceed 10–20 kilometers.
6. Every year Hawaii approaches Alaska by 7.5 cm
The earth's crust consists of several huge parts - tectonic plates. These plates are constantly moving with the top layer of the mantle. Hawaii is located in the middle of the Pacific Plate, which slowly drifts northwestward toward the North American Plate, on which Alaska is located. Tectonic plates move at the same speed as human nails grow.
7. In 2.3 Billion Years, Earth Will Be Too Hot for Life
Our planet will eventually become an endless desert, similar to today's Mars. For hundreds of millions of years, the Sun has been heating up, getting brighter and hotter and will continue to do so. In more than two billion years from now, temperatures will be so high that the oceans that make the Earth habitable will evaporate. The entire planet will turn into an endless desert. As scientists predict, in the next few billion years, the Sun will turn into a red giant and completely swallow the Earth - the planet will definitely come to an end.
Flickr.com/andy999 Thermal imagers are able to identify an object by the heat it emits. And polar bears are experts at keeping warm. Thanks to a thick layer of subcutaneous fat and a warm fur coat, bears are able to endure even the coldest days in the Arctic.
9. Light will take 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 at such a dizzying speed, it will take time to cover the distance between the Sun and Earth. And 8 minutes is not so much on a cosmic scale. Sunlight takes 5.5 hours to reach Pluto.
10. If you remove all interatomic space, humanity will fit in a sugar cube
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, which proportionally take up more space. This is because electrons move in waves. They can exist only where the crests and troughs of waves fold in a certain way. The electrons do not stay at one point, their location can be anywhere within the orbit. And therefore they take up a lot of space.
11. Stomach juice can dissolve razor blades
The stomach digests food thanks to caustic hydrochloric acid with a high pH (hydrogen index) - from two to three. But at the same time, acid also affects the gastric mucosa, which, however, is able to quickly recover. Your stomach lining is completely renewed every four days.
Scientists have many versions of why this is happening. Most likely: because of the huge asteroids that influenced its course in the past, or because of the strong circulation of air currents in the upper atmosphere.
13. A flea can accelerate faster than a space shuttle
Jumping fleas reach mind-boggling heights - 8 centimeters per millisecond. Each jump gives the flea an acceleration that is 50 times the acceleration of the spacecraft.
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 angry face), despite the fact that they are unable 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 resulted in temperatures in the billionth power of absolute zero.
5. There are more synapses in the human brain than there are stars in the Milky Way.
6. If it was possible to remove all the empty space in the atoms, then Everest could be placed in a glass.
7. The compound that gives raspberry flavor is found throughout our galaxy. You understood correctly, Milky Way tastes like raspberries.
8. According to the Hafele-Keating experiment, time runs faster when flying in a westerly direction than in an easterly direction (relative to the center of the Earth).
New interesting facts
9. All the cells in your body have been dividing since life began on Earth. And all this division will end with your death, except for the cells that you pass on to your offspring (1 per child) and some circumstances (for example, organ donation).
10. The only reason you can read this article is that hundreds of kilometers of fiberglass cables lie on the ocean floor.
11. Lubrication in your knees is one of the slipperiest substances known to man.
12. When you remember an event in the past, you are not remembering the event itself, but rather the last time you remembered it. In other words, you have a recollection of memories. For this reason, people's memories are often inaccurate.
13. Pluto has made only 1/3 of a revolution since it was discovered.
14. If the Earth were the size of a billiard ball, it would be smoother (there would be less vibrations between high and low points on its surface).
15. Human sweat is odorless, but since bacteria feed on it, the smell comes from their waste products.
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 a computer simulation.
18. The human body emits more heat per unit volume than the sun.
19. None of your ancestors died before successfully bearing offspring.
20. Stomach acid is strong enough to dissolve zinc.
