Work Breakdown Structufor SCSC

Quick question

14 PSI is sea level air pressure on earth if I remember correctly. I
remember reading that space suits either are or could be pressurized to
3 PSI using a nearly pure oxygen mixture. The question is would it be
worth the risk to have 3 PSI oxygen or standard 14 PSI air mixture.
There is a plentiful supply of oxygen tied in moon material on the
surface. Nitrogen will need to be shipped in. Another bonus to having a
lower PSI approach is if by some off chance your dome was punctured your
air would seep out instead of blow out. Someone correct me if my physics
are off. =] The only downside that I can think of would be the rather
extreme fire risk that near pure oxygen imposes. Which of these
approaches would you use in your geodesic dome of much glass?

- Ted

> Will the pressure being outward rather than inward (vacuum as opposed
> to
> underwater) affect the design you have in mind?
>
No difference. The forces on the blocks are dominated by weight (in
the case of ~1m thick blocks). For the underwater dome, the external
pressure is structurally important, but for a lunar dome the weight of
the blocks is really all that matters. Pressure is a second order
correction.

......Andrew