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What are the physical differences and engineering challenges to building something to survive

  1. Outer space
  2. Depth of sea

And which is more difficult?

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Sorry but I have to close this, as the question is not at all clearly defined. – David Zaslavsky♦ Sep 12 '11 at 11:32
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@David - wouldn't it be better to rewrite it? It's potentially interesting. – Martin Beckett Sep 12 '11 at 12:46
Right now the questions has a Gorilla-vs-Shark feel to it. Questions relating to the engineering challenges of deploying instruments in difficult environments might be allowed---I'm in favor of them, but we haven't really settled that yet and if the Experimental science proposal goes ahead it might be a better place for them. – dmckee♦ Sep 12 '11 at 17:32
@Martin: I don't see a way to rewrite this question to make it acceptable without completely changing Zain's intent. – David Zaslavsky♦ Sep 12 '11 at 19:32
@David - I tried to rewrite the Q. I think explaining how approaching a perfect vacuum only asymptotically increases the pressure difference in a spacecraft while going deeper increases that on a submarine almost indefinetly. Then there are thermal effects, the difference between extreme temperature vs conductivity, power availability. Lots of good physics and teaching opportunity. – Martin Beckett Sep 12 '11 at 21:51
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closed as not a real question by David Zaslavsky♦ Sep 12 '11 at 11:31

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.

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