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# lunar housing

melt soil and inflat
 (0) [vote for, against]

 — BubbaX, Nov 29 2003

 Care to elaborate?

sp: inflate
 — Letsbuildafort, Nov 29 2003

BubbaX, you need to copy/paste the text from the lunar housing2, then delete that idea. You can get to it above. Keeping the HB trim is a constant battle, so your help is appreciated.
 — yamahito, Nov 29 2003

 Bubbax, this is not a bad idea. But really, you need to explain more!

 As a comment, I would use a soalar reflector to concentrate sunlight for the melting of the rock. I would then pile the lunar dust upon your house to a depth of 10-20 ft. with only an airlock sticking out ( this protects from radiation, metoroites ). One of these units could be made quite light but would need a large reflector ( made of mylar to keep weight down ).

 Melting pot should be of graphite and will need to melt ~1/14 cubic feet per minute ( ~1500 ft.^3 / 20160 minutes ) to make a one story, 1000 ft.^2, 8ft. ceiling, 6in. walls ( and floors ) in 14 days ( lunar daytime period )

To figure out how big of a reflector you'll need you need to know the melting temp. of lunar rock, it's specific heat capacity, it's heat of melting, the average radiation recived on the moon ( if you are using a non-stearable reflector ), how much will be reflected of the melting pot, and how much heat will be lost from the meling pot through radiation. (longest post to date!)
 — my-nep, Nov 29 2003

Looks like he's explained the idea on his profile page.
 — waugsqueke, Nov 29 2003

 Plenty of oxygen in lunar dust, I hear.

If we can afford to send up the equipment to melt rock, we can afford to send up equipment to extract air from rock.
 — Almafeta, Nov 29 2003

I sugest, bubbax, that you use a reflector instead of a refractor. This will (I think) decreas the nessecary optical quality.(cheaper, lighter)
 — my-nep, Dec 04 2003

You're kind of assuming that lunar dust is made up of sand.
 — DrCurry, Dec 04 2003

.... whereas we all know it's made of cheese!
 — dobtabulous, Dec 05 2003

 Not realy silicon oxide magority as I understand -mabe wrong-, but enough of it melts at 700-1000* Celcius to make structures. Just to point out a problem with your plan, The air, when injected, will rise to the top, where it will either pop or make the top un-structuraly thin.

My meathod has not this problem, and uses less energy as there is, at any one time, a smaller radiating area. My idea is basicaly a cross of the coil clay meathod - building a hollow collem of ropes of clay - and cement pouring - using retainer walls. That is, you pour molten moon-dust/rock into tungsten(?) molds, which size necisiated by weight, requires be moved frequently, in (my case) a spiral path, building upwards with each rotation.
 — my-nep, Jan 04 2004

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