The inhabitants of planet Earth take gravity as a matter of course. It is known that Isaac Newton developed the theory of universal gravitation due to the fact that an apple fell from a tree on his head. But in reality, Earth's gravity is much more than a fruit that has fallen from a tree. In our review, there are some curious facts about this power.
1. Toilet physics
On Earth, people want to relieve themselves as soon as their bladder fills 1/3 of its maximum volume. This is due to the action of gravity on each of us. That is why cosmonauts on the ISS do not feel the need to urinate until their bladder is full.
2. Unpretentious colonization
Gravity is a very important issue when colonizing other worlds. In theory, people can live on planets whose gravitational force differs from the Earth's by no more than three times. Otherwise, the blood supply to the brain will be disrupted.
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3. Height of mountains
In theory, gravity determines the maximum height of the hills forming on the planet. So for the Earth (again in theory) the mountains cannot exceed 15 kilometers.
4. Lunar physics
During the historic Apollo mission, astronauts who landed on the lunar surface tested the effect of Galileo's theory of free fall acceleration. It turned out that objects on the moon, regardless of their mass, fall faster than on Earth. The reason for this is the lack of air and, as a consequence, resistance.
5. Loser star
Many scientists consider Jupiter to be a failed star. The planet has a strong enough gravitational field in order to gain the necessary mass for the star, but it has not a strong enough field in order to start transforming into another star.
6. Teleportation
If you take and remove the Solce somewhere in an instant, then the solar system will experience the effect of its gravitational field for some time. For the Earth, in theory, this "happiness" would last about 8 minutes, after which the celestial bodies would begin to lose their orbits.
7. Mountains on the stars
If our Sun ever turns into a neutron star, then, according to scientists' calculations, gravity on it will be so powerful that the height of the largest mountain on its surface would not be able to exceed 5 millimeters.
8. Mournful singing of the stars
The action of the gravitational field of celestial bodies after their disappearance is not at all a dry theory. Our solar system and our home planet are constantly experiencing the action of the gravitational field of other stars. Considering the speed of field propagation in space, many of these stars ceased to exist for a very, very long time.
9. Candles in space
If you light a candle in the absence of a gravitational field, then its fire will be round. Moreover, the color of the flame will be blue.
10. Soda kills
Drinking carbonated drinks in the absence of gravity is definitely not worth it. Why? This is because the absence of gravity completely changes the principle of gas propagation in the human body. At best, this can provoke an attack of severe vomiting. That is why the astronauts on the ISS do not drink soda.