Hear me out, gravity pulls us towards itself. It is determined by the magnitude of mass of that object. As we go deeper in earth, the amount of mass ‘under’ us decreases and so doesn’t the gravity also decrease? Have been thinking about it since I was 12, I am 15 now 🙂
Edit : It wouldn’t be right to thank just one of you by replying as I have seen some other people do but thanks for all the replies, I really appreciate it.
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It really dosen’t. The further down you go, the more mass is pulling you the opposite direction. By the time you get to the center, there is no net gravitation force but that doesn’t mean you don’t move, it means you move at the same speed you were going to get there.
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Nope as you go deeper there is now mass above you which is pulling you upwards, when you go really deep all the mass of the Earth is now above you in all directions.
Mass dictates the an objects gravity. The effects of gravity diminish greatly with distance.
The scientific formula is, iirc,
F = Gm1 • m2 / r^2
F is the force generated, G is the gravitational constant , m is the mass of the respective objects, and r is the radius (distance to the center of mass)
The reason I share this is because you can see that any increase in distance will be more impactful than a increase in mass of similar proportions
That’s why the moon, although significantly less massive than the sun, is so much more impactful on say the tides than the sun is, because it is so much closer.
the moon is 400x closer than the sun , but the sun is 330,000 more massive than the earth — which is more massive than the moon
The same way if you squirt someone with a water pistol, the further away you are from the tip of the gun, the less water pressure you will feel, as the pushing force decreases…well the same is true for pulling forces, the further away you are from something that is trying to pull on you, the less force they can pull you with, just like how two magnets won’t attract until they are close enough, because the pull force gets stronger as they move closer until it crosses the threshold to bang together
Well to be fair, the concept of “gravity” in todays world would be described as objects being pulled toward earth. if you really think about it “gravity” is just a term made up by someone. things come back to earth because they are heavier than air, so with that being said just like you need a vessel to go very deep in the ocean bc of water pressure (literal weight of water), I am almost certain you would get so deep then crushed, if you somehow bored a hole through the entire earth you would fall through, because why wouldn’t you?
Umm. It actually doesn’t increase as you go below the surface. It decreases. The mass of the earth above you is pulling you in the opposite direction (up). There is additional reduction as mass density gets shifted to both sides ans cancels out. Once you get to the center of the earth, gravitation acceleration in all direction cancels out. (You could float in the middle of the earth.)
Are you sure you aren’t thinking about pressure? Cause that will increase.
If on the other hand, if the earth was a hollow sphere, as soon as you got inside you’d be weightless.
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