I was watching a Vsauce video and learned that any two objects, like two baseballs, are attracted to each other because of their mass, and the bigger the mass, the more gravity an object has. What does mass have to do with gravity, and what causes gravity? Why does something just attract other things around it?
In: Physics
Gravity isn’t really a force, that’s just an easy way to describe it. Gravity is actually the result of the bending of spacetime, which mass does. Imagine you place a bowling ball on a mattress. It’s going to make an indentation in the mattress while it sits there, right? Now imagine you put a smaller ball next the the bowling ball. What’s it going to do? It’s going to roll downhill into the indentation created by the bowling ball until it’s touching the bowling ball. Now that smaller ball makes an indentation as well, it’s just a lot smaller than the bowling ball because the bowling ball is a lot more massive.
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