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Simulated Gravity with Centripetal Force
(and a lack of centripetal force)

We tend to feel like weight (the force of gravity) is acting on us only when we can feel the floor pushing back up on the bottom of our feet.  That's why when we are in free fall we feel like we are weightless because nothing is pushing on the bottom of our feet.  It also explains why when you are in an elevator and it accelerates downward, you feel like you weigh less than normal because the floor doesn't push as hard against your feet. ...

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