Time travel is possible, but only when there are parallel timelines in the universe
In science fiction works, as long as there is a time machine, we can travel back to the past at any time. But is time travel actually feasible in our ...
Tag: general relativity
Why does gravity pull us down instead of pulling us up?
Gravity is a force that is present everywhere, shaping our daily experiences, keeping humans anchored to Earth, and governing the motion of planets in space.So why are we pulled down ...
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