alpha2cen Posted October 20, 2012 Share Posted October 20, 2012 (edited) We think no gravity force existing state is a gravity-free state. At these states we feel the same feeling? Are there any difference ? Edited October 20, 2012 by alpha2cen Link to comment Share on other sites More sharing options...
Scott82 Posted October 20, 2012 Share Posted October 20, 2012 Are you talking about the case when two sources of gravity exactly cancel out each other? I'm aware of 2 instances of this in nature: The 1st is what we call the langrange points between any 2 orbiting bodies. At the 5 lagrange points the gravity of the 2 bodies neutralizes and allows anyone at this point to stay relatively at rest without falling towards either body. The 2nd is theoretical in that I think it would only work in a planet-sized hollowed-out sphere. If you were within such a sphere, the gravitational faces exerted by it's inner arc should cancel out exact, leaving you free-floating. Regarding your question, I don't think there would be any difference between a space where gravitational forces neutralize one another and a place where there is no gravity at all. Link to comment Share on other sites More sharing options...
JohnStu Posted November 11, 2012 Share Posted November 11, 2012 very different Link to comment Share on other sites More sharing options...
JohnStu Posted November 18, 2012 Share Posted November 18, 2012 Yes the person wouldn't feel anything. In the case of a person in orbit (feeling of weightlessness) vs a person under 0 net acceleration from gravity are different. A human dies under 0 gravity I believe, especially adults. Either instantly due to blood over-rushing to brain and oxygen delivery problems or a slow death from indigestion due to severe endless dizziness. Link to comment Share on other sites More sharing options...
ACG52 Posted November 18, 2012 Share Posted November 18, 2012 In the case of a person in orbit (feeling of weightlessness) vs a person under 0 net acceleration from gravity are different. A human dies under 0 gravity I believe, especially adults. Either instantly due to blood over-rushing to brain and oxygen delivery problems or a slow death from indigestion due to severe endless dizziness Do you have any kind of citation for this piece of nonsense? Link to comment Share on other sites More sharing options...
swansont Posted November 18, 2012 Share Posted November 18, 2012 Yes the person wouldn't feel anything. In the case of a person in orbit (feeling of weightlessness) vs a person under 0 net acceleration from gravity are different. A human dies under 0 gravity I believe, especially adults. Either instantly due to blood over-rushing to brain and oxygen delivery problems or a slow death from indigestion due to severe endless dizziness. The astronauts who went to the moon seem to have survived. Link to comment Share on other sites More sharing options...
John Cuthber Posted November 18, 2012 Share Posted November 18, 2012 I wonder why JohnStu bothered to reply. His replies contradict eachother (and also what's known from space travel.) Anyway, there is a difference. An object of non-zero size would be stretched a bit in all the cases except the first. Link to comment Share on other sites More sharing options...
alpha2cen Posted December 1, 2012 Author Share Posted December 1, 2012 Is the center of the Black Hole no gravity state? Link to comment Share on other sites More sharing options...
derek w Posted December 1, 2012 Share Posted December 1, 2012 Yes the person wouldn't feel anything. In the case of a person in orbit (feeling of weightlessness) vs a person under 0 net acceleration from gravity are different. A human dies under 0 gravity I believe, especially adults. Either instantly due to blood over-rushing to brain and oxygen delivery problems or a slow death from indigestion due to severe endless dizziness. These are symptoms of zero atmospheric pressure,not zero gravity. Link to comment Share on other sites More sharing options...
alpha2cen Posted December 5, 2012 Author Share Posted December 5, 2012 Huge amount of high intensity beam makes no gravity? Is there no attractive force between them? Link to comment Share on other sites More sharing options...
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