Difference between revisions of "Talk:Blacksmith"
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:Many multi-tonne pieces of meteoric iron have been found on Earth, even though its orbit is intersected by far fewer asteroids and the meteorite's geological lifespan before eroded or buried is far shorter on Earth's surface. So it's simple extrapolation to expect even larger pieces to be even more abundant on Mars and, to a lesser extent, on the moon. We've done only a miniscule amount of exploration at the necessary detail, so that doesn't tell us anything. As for location, if there is subsurface ice over one-quarter of the surface of Mars, and 400 kilotonne-sized iron meteorites, that gives us 100 locations to choose from with both ice and iron. [[User:Frontiersman|Frontiersman]] 01:39, 15 February 2010 (UTC) | :Many multi-tonne pieces of meteoric iron have been found on Earth, even though its orbit is intersected by far fewer asteroids and the meteorite's geological lifespan before eroded or buried is far shorter on Earth's surface. So it's simple extrapolation to expect even larger pieces to be even more abundant on Mars and, to a lesser extent, on the moon. We've done only a miniscule amount of exploration at the necessary detail, so that doesn't tell us anything. As for location, if there is subsurface ice over one-quarter of the surface of Mars, and 400 kilotonne-sized iron meteorites, that gives us 100 locations to choose from with both ice and iron. [[User:Frontiersman|Frontiersman]] 01:39, 15 February 2010 (UTC) | ||
:BTW, do you know of any good studies about the propellant costs of surface-to-surface rocket transport on Mars? [[User:Frontiersman|Frontiersman]] 01:48, 15 February 2010 (UTC) | :BTW, do you know of any good studies about the propellant costs of surface-to-surface rocket transport on Mars? [[User:Frontiersman|Frontiersman]] 01:48, 15 February 2010 (UTC) | ||
| + | :::Simple extrapolation may be simply wrong. We cannot count on it until it is proven, but it is a reasonable guess. I do not think there are good cost estimates for producing anything on Mars yet.--[[User:Farred|Farred]] 02:25, 15 February 2010 (UTC) | ||
Revision as of 18:25, 14 February 2010
On Luna meteoric iron has shown up as tiny bits in the regolith. If on Mars this iron is conveniently available in large chunks requiring minimal processing to use, it has yet to be demonstrated. Such deposits might not be close to a settlement if they exist.--Farred 00:59, 15 February 2010 (UTC)
- Many multi-tonne pieces of meteoric iron have been found on Earth, even though its orbit is intersected by far fewer asteroids and the meteorite's geological lifespan before eroded or buried is far shorter on Earth's surface. So it's simple extrapolation to expect even larger pieces to be even more abundant on Mars and, to a lesser extent, on the moon. We've done only a miniscule amount of exploration at the necessary detail, so that doesn't tell us anything. As for location, if there is subsurface ice over one-quarter of the surface of Mars, and 400 kilotonne-sized iron meteorites, that gives us 100 locations to choose from with both ice and iron. Frontiersman 01:39, 15 February 2010 (UTC)
- BTW, do you know of any good studies about the propellant costs of surface-to-surface rocket transport on Mars? Frontiersman 01:48, 15 February 2010 (UTC)
- Simple extrapolation may be simply wrong. We cannot count on it until it is proven, but it is a reasonable guess. I do not think there are good cost estimates for producing anything on Mars yet.--Farred 02:25, 15 February 2010 (UTC)
