Difference between revisions of "Talk:The Eden Project"
(98% - Where does this value come from?) |
|||
| (4 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
== 98% == | == 98% == | ||
Where does this value come from? -- [[User:Rfc|Rfc]] 18:58, 1 December 2009 (UTC) | Where does this value come from? -- [[User:Rfc|Rfc]] 18:58, 1 December 2009 (UTC) | ||
| + | :If one designs a pressure vessel to contain 0.5 atmospheres pressure, as might be adequate for a greenhouse, then the atmospheric pressure of Mars, 0.01 atmospheres helps to hold that pressure in so that the differential pressure is 0.49 atmospheres, or 98% of differential pressure for building such a greenhouse in a vacuum. Of course if one wants to maintain 1 atmosphere internal pressure, then the differential pressure on Mars would be 0.99 atmospheres.--[[User:Farred|Farred]] 07:01, 4 December 2009 (UTC) | ||
| + | |||
| + | The Eden Project is a really cool day out but I'm not convinced of the relevance to Mars exploration. It doesn't make reference to anything off-world, or even contained biospheres (in the way Biosphere 2 did). I would suggest that this page should be deleted.--[[User:Pete9804|Pete9804]] 20:01, 28 September 2013 (UTC) | ||
| + | :The text compares greenhouses on Earth with greenhouses on Mars, so the article has some relevance. - [[User:Farred|Farred]] 21:22, 28 September 2013 (UTC) | ||
| + | ::Hi Farred. OK it has a little relevance, not sure it justifies it's own page though, should probably just be a section in the [[greenhouse]] article? - [[User:Pete9804|Pete9804]] 09:12, 29 September 2013 (UTC) | ||
Latest revision as of 02:12, 29 September 2013
98%
Where does this value come from? -- Rfc 18:58, 1 December 2009 (UTC)
- If one designs a pressure vessel to contain 0.5 atmospheres pressure, as might be adequate for a greenhouse, then the atmospheric pressure of Mars, 0.01 atmospheres helps to hold that pressure in so that the differential pressure is 0.49 atmospheres, or 98% of differential pressure for building such a greenhouse in a vacuum. Of course if one wants to maintain 1 atmosphere internal pressure, then the differential pressure on Mars would be 0.99 atmospheres.--Farred 07:01, 4 December 2009 (UTC)
The Eden Project is a really cool day out but I'm not convinced of the relevance to Mars exploration. It doesn't make reference to anything off-world, or even contained biospheres (in the way Biosphere 2 did). I would suggest that this page should be deleted.--Pete9804 20:01, 28 September 2013 (UTC)
- The text compares greenhouses on Earth with greenhouses on Mars, so the article has some relevance. - Farred 21:22, 28 September 2013 (UTC)
- Hi Farred. OK it has a little relevance, not sure it justifies it's own page though, should probably just be a section in the greenhouse article? - Pete9804 09:12, 29 September 2013 (UTC)
