I’m sure I’m not really understanding gravity theory, but I have in mind the illustration of marbles on a bedsheet. If that bedsheet is space-time, why isn’t there some sort of universal up and down as objects relate to each other?
In: Planetary Science
The bedsheets are basically a 2d representation of a 3d phenomenon. Gravity doesn’t push down. It warps space in every direction.
The marble on a bed sheet demo only works if you are viewing the sheet from above. In reality, gravity attracts regardless of which angle you are viewing from.
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