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Article #8212Re: Stopping Space and Light Pollution.
From: Henry Spencer
Date: Fri, 11 Nov 1988 21:33
Date: Fri, 11 Nov 1988 21:33
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In article <1068@esunix.UUCP> bpendlet@esunix.UUCP (Bob Pendleton) writes: >Question: Liquid water released in orbit tends to convert into a cloud >of water vapor and ice cristals. The ice crystals later sublime to >water vapor. Could large clouds of ice crystals be used to "sweep" >orbits of small debris particles? Unfortunately, you need to sweep a spherical shell, not just a single orbit, since anything at the same altitude will intersect your orbit. (Ignoring non-circular orbits for the moment...) That's a lot of volume. You also have to be careful about the possibility of making the problem worse. Hypervelocity impacts can behave in peculiar ways. It's quite possible for an impact to break both objects into pieces without doing much to decelerate or vaporize either one. Breaking the existing debris up into smaller bits is the *last* thing we want to do. -- Sendmail is a bug, | Henry Spencer at U of Toronto Zoology not a feature. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu
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Newsgroups: sci.space,sci.space.shuttle Path: arc1-ca.pugleaf.net!utzoo!henry From: henry@utzoo.uucp (Henry Spencer) Subject: Re: Stopping Space and Light Pollution. Message-ID: <1988Nov11.213348.27877@utzoo.uucp> Organization: U of Toronto Zoology References: <809@cmx.npac.syr.edu> <1068@esunix.UUCP> Date: Fri, 11 Nov 88 21:33:48 GMT