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Old 09-22-2006, 09:01 AM   #22 (permalink)
aszazeroth
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Realname: Stefan
Join Date: May 2006
Location: Höör (Scania), Sweden
Age: 33
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Quote:
Originally Posted by SandmanNinja View Post
The main concern with oxygen concentrations above 23% is the possibility that materials which would normally not ignite at normal oxygen levels, would be prone to combustion.
An Oxygen-rich atmosphere is also somewhat corrosive. Rust is the oxidation of metals. Fire is fast or rapid oxidation. (So, I guess techncially fire is real fast rust!)
I dont think there will be much industry on a planet with that much O2. I dont think a planet would form with that much oxygen.
The planet gas composition came out of a small program that I used on to "generate" solar systems. It sort of accretes matter from a pseudo-proto-stellar nebula to form the star (input parameter) and a host of planetary bodies with a lot of physical parameters (output table). Basically gravity and location from the star will determine what gases are "trapped" in the gravity well and for this particular case, apparently a lot of oxygen was trapped. I agree with the highly corrosive nature of the atmosphere. In pure O2 atmospheres aluminum bars burn like wodden logs (ref: a cool NASA movie I saw once).

To compensate for this, I will make the colony and industry sub-surface and sub-terranian or habitat structured. The overall gain here is the pure deposits of precious metals that can be extracted with minimal refinery. For some more spice to the story we can speculate if the roid actaully was natural or they are mining the wreckage of an alien spaceship

Thanks ALL for the nice comments.

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