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Top interesting scientific facts You don't know

Top interesting scientific facts You don't know

You learned a lot of interesting scientific knowledge in high school, such as Einstein's theory of relativity, periodic table of elements, and DNA replication. They are the basis for learning other interesting things in the future. But science doesn't stop at high school. Once you continue to learn, you will find that the world is really interesting.

  • Water can boil and freeze at the same time

This is called the "triple point", and it refers to a value of temperature and pressure in thermodynamics that allows a substance to coexist in three phases (gas phase, liquid phase, and solid phase).

  • Laser can be trapped in a waterfall

Yes, it is not only a perfect proof of total internal reflection, it also shows the process of fiber optic cable guiding the beam.

  • In fact, the speed of the aircraft flying to the edge of the solar system is very, very fast.

We all know that rockets are fast and space is huge. But sometimes when we talk about reaching some distant places in the solar system (8 months to reach Mars, are you teasing me?) We always feel that our aircraft is slow like a turtle crawling. The above moving picture compares the speed of the 747, SR-71 Blackbird reconnaissance aircraft and the New Horizons, showing the error of our thinking.

  • The underwater egg is like a crazy jellyfish

A broken egg on land may be a mess, but a broken egg 18 meters below the ocean bears 2.8 times the pressure it bears in the atmosphere. It is like a tightly wrapped eggshell.

  • You can use the liquid to prove the Pythagorean theorem

The teacher told you not to buy when a2 + b2 = c2? In fact, you can prove this formula using liquids.

  • This happens after a black hole devours a star

When a star is devoured by a black hole, it will eject a huge amount of plasma, spanning hundreds of light years. Suvi Gezari, a researcher at Johns Hopkins University in the United States, said: "When a star is ripped apart by the huge gravity of a black hole, some parts of the star will fall into the black hole, and the rest will be ejected at high speed."

  • You can watch without glasses

You just need to circle a small hole with your hand to help you focus the light on the retina. Of course, it will not completely restore your eyesight, but it is a good helper if you forget to bring your glasses.

  • This is how a face is made within the womb

Embryo development is a very complex process, and scientists' understanding of it is still in its infancy. But scientists were able to paint a picture of how embryos form faces in the womb. This picture allows us to watch all day.

  •  Pressing the knuckles is not necessarily harmful

For sixty years, a researcher has been pressing his fingers on one hand while leaving the other hand untouched. At the end of the experiment, he found no difference in the degree of arthritis in the two hands.

  • The energy released by a solar flare is equivalent to the energy released by the explosion of millions of 100-megaton atomic bombs

Flares have been erupting on the sun.

  •  Thanks to physics, cats can always land on their feet

As shown above, cats can use their two halves to ensure that they can spin quickly (don't try it at home).

  • Compared to exploding in water, you have a higher chance of survival when a grenade explodes on land.

The end of these balloons is exactly what your lungs will suffer when a grenade explodes underwater and you are nearby.

  •  If you spin a ball when you drop it, it will fly up

I mean, it really can fly. Thanks to the Magnus effect, when the air on the side of a rotating object is rotating in the same direction as the object, it will be dragged along by the object and deviate. At the same time, the air on the other side of the ball was moving in the opposite direction, so the air flow separated.

One of the most interesting aspects of science is discovering new things every day, and never stop learning.

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