Expert: Paul Soderman - 6/30/2011

Question
Is it possible to create 1G gravity in a airlock cab with vacuum vented through the floor? example. floating in space, your in a pressurized cab, both inside and out of the cab are currently at 0G of gravity. now, if you integrate a vacuum suction in the floor of the cab to circulate and pull air to the bottom of the cab. would it create the feeling of 1G artificial gravity? would the required amount of vacuum to produce 1G be to extreme for human body?

thank you

Answer
Gravity is directional.  Air pressure on a body is omnidirectional.  Therefore, reducing the pressure in a space capsule would not produce a feeling of gravity unless the person were sitting on the pressure port and felt a suction, but I don't think that is what you had in mind.