Date: Wed, 21 Jun 2000 23:12:57 +0100 (BST) From: Duncan Barclay <dmlb@ragnet.demon.co.uk> To: Olaf Hoyer <ohoyer@fbwi.fh-wilhelmshaven.de> Cc: Brian Handy <handy@lambic.physics.montana.edu>, freebsd-hardware@FreeBSD.ORG Subject: Re: Hardware in space? Message-ID: <XFMail.000621231257.dmlb@computer.my.domain> In-Reply-To: <4.1.20000621233928.026e05c0@mail.rz.fh-wilhelmshaven.de>
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Hi all, > > 2) Which computing power will be needed? > If the power of a 486 will suffice, there should be no need for special > cooling, since a run of, say 15 minutes won't overheat the chip. > > 3) Is it really necessary to have air in? > (Except from cooling purposes or movement maker for HDDs) > > 4) For thermal insulation, is it possible to use something like styrofoam > around the computing parts? (Or sometimes for housebuilding purposes there > is similar foam for insulation, that you can "spray" from a can) > > 5) Real problem: Acceleration. If I got you right, we talk about some > launch phase of some minutes, then a ~5 minute picture shooting, and then a > landing and perhaps some notification via GPS where to pick up the parts. Heat could the the main problem. Depending on how high you are going up, the assumption that an air cooled device will be cooled fails...There is no air! Devices that are designed to be cooled by convection may over heat. Duncan --- ________________________________________________________________________ Duncan Barclay | God smiles upon the little children, dmlb@ragnet.demon.co.uk | the alcoholics, and the permanently stoned. ________________________________________________________________________ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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