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The space station in orbit is in "Free Fall" so everything in it experiences the same gravitational force and acceleration. The space station and everything in it is falling together, so there is no relative acceleration--no relative force. This is the same reason you feel weightless at the very top of the arc on a swing, or when the roller-coaster plunges, or if you ever happen to go sky diving.The weight or "force of gravity" that you feel in your feet when standing isn't really the force of the Earth pulling you down--It is the equally strong force of the ground pushing you back up....sorry, you cannot view external links. To see them, please
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