The law of gravity weighs equally every single being that lives on Earth, and well for that matter on anything on Earth, humans, animals, rocks, trees, etc…While it is a phenomenon that is absolutely natural, we often take for granted a lot of things and often remain uninterested about a lot of things that matter a lot and gravity is one of those things. Here we have a few fascinating peculiarities worth knowing about the force that keeps everything together.
Isaac Newton did not discover the existence of gravity: he was in fact, who developed the laws describing the effects of gravity; the term “gravity” was used to describe the force that gives weight to objects before Newton was born. Newton “simply” proved mathematically that it was a universal force and saw the effects of the invisible action at a distance.
A tunnel through Earth: What would happen? If you dig a tunnel crossing the entire planet from one point to another of its surface and jump inside, it would take exactly 42 minutes and 12 seconds to reach the other side where you would stop momentarily before starting to fall through the tunnel in the opposite direction. In the first half of the journey a person would accelerate due to gravity, and decelerate in the second half, but inertia always would lead towards the other side.
Gravity is actually the weakest of the forces we know: THE ELECTROMAGNETIC FORCE, THE STRONG NUCLEAR FORCE, THE WEAK NUCLEAR FORCE, THE GRAVITATIONAL FORCE. However gravity is what gives us weight, and is the cause of planetary orbits and the creation of stars, planets and galaxies.
Lack of Gravity? Did you know that you cannot cry in zero gravity? You cannot cry in space and if you try it hurts. Also Astronauts gain up to 5 centimeters in height while in space due to the lack of compression on the vertebrae, due to the absence of gravity.
Want to lose some weight? Try Pluto
Even though Pluto isn’t a planet it’s a planet that is surely interesting. Gravity on Pluto is so cool: A person that weighs around 70 kilograms on Earth would weigh less than 5 kilograms on the Dwarf Planet. On the other hand the planet that can make you feel fat is Jupiter which is the planet with the most crushing gravitational force. On Jupiter a person that weighs around 70 kilograms on Earth would weigh over 160 kilograms.
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