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trungdq88
on Oct 19, 2020
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Gravity is not a force – free-fall parabolas are s...
This, and the one by Vsauce [1] are the 2 best videos explain spacetime on Youtube I have seen.
[1]
https://youtu.be/Xc4xYacTu-E
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[1] https://youtu.be/Xc4xYacTu-E