From owner-freebsd-hardware Thu Jun 22 11:50:30 2000 Delivered-To: freebsd-hardware@freebsd.org Received: from vali.uas.alaska.edu (vali.uas.alaska.edu [137.229.150.18]) by hub.freebsd.org (Postfix) with SMTP id 53BC337B567 for ; Thu, 22 Jun 2000 11:50:28 -0700 (PDT) (envelope-from russ.pagenkopf@uas.alaska.edu) Received: from antarctica.jun.alaska.edu [137.229.156.140] (HELO uas.alaska.edu) by vali.uas.alaska.edu (AltaVista Mail V2.0r/2.0r BL25r listener) id 0000_0064_3952_6008_d40e; Thu, 22 Jun 2000 10:50:48 -0800 Message-ID: <39526009.54D0D8E7@uas.alaska.edu> Date: Thu, 22 Jun 2000 10:50:49 -0800 From: Russ Pagenkopf X-Mailer: Mozilla 4.6 [en] (WinNT; I) X-Accept-Language: en MIME-Version: 1.0 To: freebsd-hardware@FreeBSD.ORG Cc: Brian Handy Subject: Re: Hardware in space? References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Brian Handy wrote: > -- While getting too cold probably isn't an issue, COOLING certainly is. > As a few people have alluded to, cooling in space becomes an issue because > there's no air. This will be a problem much earlier, because we'll > evacuate the payload several hours before launch. If there's a delay, the > package could wind up sitting on the launch rail for a few days under > vacuum. I've worried about blowing the top off the CPU from the heat. Something else you might look at (although it it's Linux based, sorry guys) is the LART project . They're using the StrongARM chip which allows for the processor to essentially shut down while not in use thus producing minimal heat. There are *many* other advantages to using their system in your situation. While the project is a work in progress, they do have working boards and free schematics. rus To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message