Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!henry From: henry@utzoo.UUCP (Henry Spencer) Newsgroups: net.space Subject: Re: Remotely Controlled Manipulators in Space Message-ID: <6369@utzoo.UUCP> Date: Thu, 6-Feb-86 14:51:59 EST Article-I.D.: utzoo.6369 Posted: Thu Feb 6 14:51:59 1986 Date-Received: Thu, 6-Feb-86 14:51:59 EST References: <8602020218.AA04732@s1-b.arpa>, <622@riccb.UUCP> Organization: U of Toronto Zoology Lines: 20 > > . . . a "seed" manufacturing facility . . . could be put in place . . . > > The facility would be capable of reproducing itself . . . > > What, you just drop it on the lunar surface and it installs itself? > That would be multiplying the complexity of the thing considerably. > And of course you build in a Junior Alchemy set so that it can transform > lunar soil into titanium. Oh, not impossible maybe, but certainly > a couple centuries into the future. And many quadrillions of dollars. Actually, it's not very hard at all, or terribly expensive, *if* you send along a handful of humans to do the hard parts. This problem has been studied. It is not terribly difficult to do 90% or more of the work by remote control or automation. The remaining 10% or so is vastly harder to handle that way, and the most economical approach is to use humans to fill in the gap. If the human end of the operation is a colony rather than a base (key difference: colonists don't expect to come back), it is not particularly expensive. -- Henry Spencer @ U of Toronto Zoology {allegra,ihnp4,linus,decvax}!utzoo!henry