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: Light Sails with holes Message-ID: <5172@utzoo.UUCP> Date: Tue, 5-Mar-85 20:32:11 EST Article-I.D.: utzoo.5172 Posted: Tue Mar 5 20:32:11 1985 Date-Received: Tue, 5-Mar-85 20:32:11 EST References: <595@mordor.UUCP> <5095@utzoo.UUCP>, <133@azure.UUCP> Organization: U of Toronto Zoology Lines: 10 > Wouldn't holes "significantly smaller than a wavelength of light" also > be significantly smaller than air molecules? Punching holes to reduce > weight sounds like a good idea, but I'm not convinced it would reduce > the drag any. Air molecules are several orders of magnitude smaller than the wavelength of visible light, so it does indeed work. -- Henry Spencer @ U of Toronto Zoology {allegra,ihnp4,linus,decvax}!utzoo!henry