most recent 30 from http://payload42.com 2010-09-07T07:08:44Z http://payload42.com/feeds/tag/physics http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://payload42.com/questions/39/liquids-in-hard-vacuum dariusfunk 2009-10-30T03:09:45Z 2010-09-02T12:22:55Z

<p>Are there any liquids that can exist in hard vacuum, Or does the lack of pressure make all fluids go gaseous?</p>

http://payload42.com/questions/50/what-is-the-difference-between-space-physics-and-astrophysics enzo32ferrari 2009-11-16T01:59:17Z 2010-05-28T16:23:02Z

<p>What is the difference between Space Physics and Astrophysics?</p>

http://payload42.com/questions/73/would-there-be-g-forces-on-a-person-if-the-person-was-floating-in-water David Andersen 2010-02-28T21:51:49Z 2010-03-12T00:50:47Z

<p>With relation to my previos question (see <a href="http://payload42.com/questions/61/speed-needed-to-reach-iss" rel="nofollow">http://payload42.com/questions/61/speed-needed-to-reach-iss</a>) where I suggest using "artillery" to shoot a person into space, I was wondering if it was possible to "neutralize" g-forces by filling the shell with water and placing a person in the water? I cannot get my mind around this problem. I know that having air in the lungs or in other small places would be a problem, but there is supposed to be a liquid that enables one to breed in liquid (this has also been seen in SciFi).</p>

http://payload42.com/questions/61/speed-needed-to-reach-iss David Andersen 2009-12-20T10:46:59Z 2010-01-22T07:36:54Z

<p>If one were to shoot a projectile from a high mountain. What speed would be needed in order to reach height of the ISS? I would know how to calculate this, when not counting in friction from air, but that is far from the correct answer. If I get a sensible answer I can explain my idea, which has been though of earlier by a certain Canadian working for Saddam Hussain...</p>