...Actually the gravity acceleration g in close orbit around Earth (at about 200-300km from Earth surface)is about 2/3 from gravity acceleration g0 on Earth surface(one can do easily the exact calculation). The "weightless" sensation is close orbit is due to compensation between the centrifuge force and gravity force. The gravity in close orbit is not small, but actually quite comparable with that at Earth surface.
...Actually the gravity acceleration g in close orbit around Earth (at about 200-300km from Earth surface)is about 2/3 from gravity acceleration g0 on Earth surface(one can do easily the exact calculation). The "weightless" sensation is close orbit is due to compensation between the centrifuge force and gravity force. The gravity in close orbit is not small, but actually quite comparable with that at Earth surface.
...Actually the gravity acceleration g in close orbit around Earth (at about 200-300km from Earth surface)is about 2/3 from gravity acceleration g0 on Earth surface(one can do easily the exact calculation). The "weightless" sensation is close orbit is due to compensation between the centrifuge force and gravity force. The gravity in close orbit is not small, but actually quite comparable with that at Earth surface.
...Actually the gravity acceleration g in close orbit around Earth (at about 200-300km from Earth surface)is about 2/3 from gravity acceleration g0 on Earth surface(one can do easily the exact calculation). The "weightless" sensation is close orbit is due to compensation between the centrifuge force and gravity force. The gravity in close orbit is not small, but actually quite comparable with that at Earth surface.
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