Re: retrieving material from asteroids

On Thu, 23 Feb 2006 19:58:23 GMT, Orval Fairbairn
<orfairbairn@xxxxxxxxxxxxx> wrote:

First, we have to establish whether or not the asteroid has material
that is valuable enough to spend the cost of retrieval. Solid gold,
platinum, silver or diamond comes to mind.

Otherwise, gravel is relatively cheap and plentiful to mine right here
on Earth.

Uh, the relevant cost is not of mining it, but of getting it into
orbit. Duh.

-- Roy L
.

Relevant Pages

  • Re: Ebay Diamonds
    ... When I compare prices, same diamond specs, from the net ... based on the actual look of the stone, which often can be quite a bit more ... Clarity at VS1 and up. ... clarity grades is that they are rarer, and cost a lot more. ...
    (rec.crafts.jewelry)
  • Re: One for David Friedman
    ... At the cost of its ... >> weight in silver I would be seriously tempted to buy it. ... At that price, I would order two for myself. ... (Maybe with something like a Bluetooth display sunglasses ...
    (rec.arts.sf.composition)
  • Re: Lead problem
    ... Partner will not provide much help. ... But your diamond and heart holdings both ... Qx-are likely to cost (and those might not depending on declarer's ... If you lead a diamond, ...
    (rec.games.bridge)
  • Re: Lead problem
    ... Partner will not provide much help. ... But your diamond and heart holdings both ... Qx-are likely to cost (and those might not depending on declarer's ... If you lead a diamond, ...
    (rec.games.bridge)
  • Lead problem
    ... Partner will not provide much help. ... But your diamond and heart holdings both ... Qx-are likely to cost (and those might not depending on declarer's ... If you lead a diamond, ...
    (rec.games.bridge)