Incredible facts that you won't immediately believe (25 photos)

There are so many amazing things happening in our world that it is sometimes difficult to distinguish fact from fiction. but all the facts given here are the absolute truth, even if it is difficult to believe.







The average cloud weighs about 500 tons - the same as 80 elephants.





Astronauts on the space station hardly ever get thirsty. Most wear timers remind them to hydrate regularly. This is a feature of the human condition in weightlessness.



Australian Aboriginal people have myths that date back to when their ancestors lived alongside megafauna.



Water is a good protection against radiation. Every 7 centimeters of water between the body and the source halves the dose absorbed by the body.



There have been two Appalachian mountain ranges in the history of our planet. The first one, over many millions of years, managed to form, become huge, and then smooth out to a flat plain. Only then did a second, modern mountain range form in the same place.



Clarence Dally was one of Thomas Edison's favorite employees. He often gave demonstrations of the fluoroscopic apparatus invented by Edison. This was long before people knew about the dangers of radiation, so no one took any safety precautions. Due to the large amount of radiation Dally received in a short period of time, he began to suffer from visible radiation damage—most notably peeling skin on his hands, arms, and face. Dally required numerous skin grafts and had to have his left hand amputated, as well as several fingers on his right hand. In a last-ditch attempt to save Dally's life, doctors completely amputated both of his arms, but this was not enough to stop the cancer from spreading. Clarence Dally soon died of mediastinal cancer. This is believed to be the first death in history caused by radiation. After the death of his beloved friend and assistant, Thomas Edison abandoned his research on fluoroscopy. When asked about this, Edison said, “Don't talk to me about X-rays. I'm afraid of them."



Every person's inner ear contains ear crystals that interact with the fluid in the ear to maintain a sense of balance.



Crows are the smartest birds on the planet, they have the intelligence of a 7-year-old child. They can make and operate lever instruments to solve their problems, use currency, visit their grandparents, remember faces for 5 years, and can imitate sounds they hear. They may also take the "marshmallow test" where you offer them a small portion of food with the promise of a larger portion if they refuse it. Toddlers and most primates cannot pass this test. Crows are also self-aware.



The extinction of the dinosaurs was by no means the worst extinction event on Earth. The previous extinction event, at the end of the Permian period, wiped out 97% of all life on Earth.



Bears lose virtually no muscle or bone mass during hibernation. Scientists believe that deciphering their genetic code will be the key to long-term space travel in zero gravity without adverse consequences for astronauts.



Woolly mammoths went extinct about 3,900 years ago. However, a population of about 500 animals survived and existed for many more centuries on an island off the coast of Siberia, far from people. However, the lack of diversity has caused many unfortunate DNA mutations, particularly increasing the risk of diabetes. So after a certain number of generations they too became extinct.



In summer, the Eiffel Tower becomes 15 centimeters higher due to heating.



The mitochondrial endosymbiont theory states that mitochondria (the powerhouse of the cell) were once free-living prokaryotic cells. They were, however, absorbed by larger cells. The larger eukaryote took care of the small prokaryote, and in return the small prokaryote became a mitochondrion and provided the cell with energy.



There are more combinations in a deck of cards than there are particles on the entire Earth, counting not only molecules or atoms, but also individual protons, electrons, etc. Once you shuffle the deck, you can be confident that the combination of cards you have created has never been seen before. was created and will never be created.



Bees can see ultraviolet light. At the same time, if you look at plants in ultraviolet light, you will find different patterns on them, created by nature to ensure pollination.



As early as 1930, radium was used in food, water, chocolate, toothpaste, toys, lamps, and cosmetics. Some believed that when injected into the urethra it helped cure impotence. All this happened before radium was discovered to cause cancer.



Helium is a mined commodity and a non-renewable resource. Once in the air, it rises up through the atmosphere and is lost in space.



Propane gas is actually odorless. The smell comes from another chemical called mercaptan - it is extremely smelly and is added to the gas specifically so that people can easily detect gas leaks.



People who spend more time at altitude, such as those who fly frequently or live high in the mountains, are more likely to die from cancer due to greater exposure to cosmic radiation.



Humans appear to be the cause of the extinction of elephants in America. Elephants used to live in California, but over time their habitat decreased. The last elephants lived on the islands off the Californian coast, and they died in a gigantic fire, which was supposedly started by representatives of one of the tribes of the first people who lived here.



The Earth's core is hotter than the surface of the Sun.



Whales were originally land mammals that lived and hunted on the coasts. Then they evolved to leave the land, and a little later evolution made them amphibians so that they could use both land and ocean. And finally, they finally returned to the water - again thanks to evolution! Whales have tiny bones near their spines that are remnants of the drumsticks that whales had when they lived on land. And their closest terrestrial mammal relative is the hippopotamus!



If you sever the connection between the two halves of the brain, surprisingly, they will still function on their own, although they can no longer communicate with each other. Operations to separate the brain hemispheres have led to a number of interesting discoveries about the role of the left and right hemispheres. Patients with separated brain hemispheres behaved normally after surgery and reported feeling good.



The cells found in the human brain can only recognize red, green and blue colors. What happens when we see, for example, the color yellow? We see yellow because our eyes detect a mixture of red and green, and our brain averages it out to yellow. So the color yellow exists, but our brains can only guess what it looks like because we don't actually have receptor cells for it.