Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!pt.cs.cmu.edu!MATHOM.GANDALF.CS.CMU.EDU!lindsay From: lindsay@MATHOM.GANDALF.CS.CMU.EDU (Donald Lindsay) Newsgroups: comp.arch Subject: Re: ETA10 (was Re: Surges) Message-ID: <7043@pt.cs.cmu.edu> Date: 20 Nov 89 17:23:22 GMT References: <3217@convex.UUCP> <5290@internal.Apple.COM> Organization: Carnegie-Mellon University, CS/RI Lines: 13 In article <5290@internal.Apple.COM> desnoyer@apple.com (Peter Desnoyers) writes: >Actually, isn't LN2 supposed to be a pretty lousy thermal conductor? Just >because it's cold doesn't mean it's a good coolant :-) You're probably thinking of liquid helium. The superconductivity researchers were thrilled to switch from helium to nitrogen. Also, note that liquids are three orders of magnitude denser than air. Air is even worse than helium (but cheap). -- Don D.C.Lindsay Carnegie Mellon Computer Science