Re: Radiation and manned flight.

From: Tom Kent (teeks99stuff_at_yahoo.com)
Date: 12/16/04 

Date: Thu, 16 Dec 2004 19:03:29 GMT

JazzMan <No_Spam@airmail.net> wrote in news:41C10D24.275@airmail.net:

> Shielding is easy enough if you have easy access to mass
> and cheap ways to move it. On Mars or the Moon a bulldozer
> can excavate a pit, line the pit with locally made concrete
> as well as a roof support system, then backfill the roof
> with a few meters of rock and soil.

Why not just drill down and excavate underground. Then you'd have a nearly
air-tight volume....and you don't need to get anything to the moon except
some drills.

Tom

Relevant Pages

  • Re: Your worst project?
    ... that we could clean up the corners of the pit that we had excavated for under ... sink it, excavate, pour more on top, keep going. ... Here's their website showing the technique in use. ...
    (rec.crafts.metalworking)
  • Re: Your worst project?
    ... I'm afraid that it's got to be listening to my neighbour when he suggested ... that we could clean up the corners of the pit that we had excavated for under ... Once the concrete was hardened I would excavate ... the ground from the centre section, pumping as necessary to control water ...
    (rec.crafts.metalworking)
  • Re: plasma ejector braking
    ... > could excavate a significant amount of ejecta back along its trajectory, ... The escape velocity on the moon isn't really high enough to melt all the ... ejecta, which is a really bad thing. ...
    (sci.space.policy)