9 amazing scientific facts you didn't teach at school
I could have learned many things in high school physics, chemistry, and biology classes such as theory of relativity, periodic table, and DNA replication.
This knowledge is the basis for our continuing quest for all the amazing facts. But, of course, science is beyond the scope of high school knowledge. If you want to deepen your knowledge to the next level, it quickly becomes wonderfully interesting.
Here, let's take a look at the evolving scientific facts that were not taught at high schools abroad, without any particular ranking.
[1. Water freezes at the same time it boils]
Science!-Cyclohexane at the Triple Point
This is called the "triple point" and occurs when the temperature and pressure are in a thermodynamic equilibrium state in which the three phases of the substance (gas, liquid, solid) can coexist.
[2. Laser is captured by a waterfall]
This is an example of "total reflection", which is also the mechanism by which an optical fiber cable guides the flow of light.
[3. Spacecraft are moving at a tremendous speed to the end of the solar system]
I know rockets are fast and the universe is vast. Still, considering the time it takes to reach far into the solar system, spaceships seem to crawl (8 months one way on Mars).
[4. Eggs become jellyfish in water]
BIOS-Water Moves: The Egg!
It would be hard to break an egg on the ground, but at a depth of 18 meters, the pressure of 2.8 times the atmospheric pressure keeps the shape as if there were an invisible shell.
[5. We can prove the Pythagorean theorem with liquids]
[6. The moment a black hole swallows a star
When a star is swallowed by a black hole, a huge jet of plasma is emitted, spreading for hundreds of light years. "When a star is torn by the gravity of a black hole, some of it falls into the black hole and the rest is ejected at high speed," explains Svi Jessari of Johns Hopkins University.
[7. You can see without glasses]
All you have to do is make a small hole by hand. This allows the light entering the retina to be focused. Of course, it's not like 2.0 eyesight, but it's useful when you forget your glasses
[8. Face formation in the womb]
Fetal development is surprisingly complex, and experts are just starting to understand. But the process by which the fetus was folded in the womb and formed the human facial structure could be mapped. I never get tired of watching all day long.
[9. Sounding a fist joint is not necessarily bad for the body]
One researcher continued to squeak one-handed joints for 60 years without making any discernable difference in the amount of arthritis.
・ Is it true that squeaking your fingers causes arthritis? Verify that rumor. : Carapaya
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