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- Newsgroups: sci.space
- Path: sparky!uunet!elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!sdd.hp.com!ux1.cso.uiuc.edu!news.cso.uiuc.edu!uxa.cso.uiuc.edu!jbh55289
- From: jbh55289@uxa.cso.uiuc.edu (Josh Hopkins)
- Subject: Re: Solar sails
- References: <C16E09.DM7.1@cs.cmu.edu>
- Message-ID: <C1AC9L.Dp@news.cso.uiuc.edu>
- Sender: usenet@news.cso.uiuc.edu (Net Noise owner)
- Organization: University of Illinois at Urbana
- Distribution: sci
- Date: Sat, 23 Jan 1993 02:29:43 GMT
- Lines: 18
-
- 18084TM@msu.edu (Tom) writes:
-
- >Josh Hopkins: >
-
- >Has anyone given any thought to sailing on something besides optical/IR
- >waves? How about a giant radio antenna? X-ray reflectors?
-
- The Starwisp uses microwaves if I recall correctly. Make an impossibly huge
- mesh that's impossibly light and send impossible amounts of radio energy at it
- (say a good sized SPS worth) and you've got a starwisp. I think Bob Forward's
- proposal used 10 GW to boost at 115 gravities for a few days. It would then
- coast at .2 C for twenty years before zipping through Alpha Centauri.
-
- --
- Josh Hopkins jbh55289@uxa.cso.uiuc.edu
-
- Q: How do you tell a novice from an expert.
- A: A novice hesitates before doing something stupid.
-