Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!uwvax!umn-d-ub!umn-cs!nis!viper!dave From: dave@viper.Lynx.MN.Org (David Messer) Newsgroups: sci.space.shuttle Subject: Re: What happened? Could risk be higher? Message-ID: <2991@viper.Lynx.MN.Org> Date: 9 Dec 89 02:23:35 GMT References: <5082@jane.uh.edu> <1989Nov29.163242.1165@utzoo.uucp> <6791@pdn.paradyne.com> <1989Dec1.040218.26158@utzoo.uucp> <6801@pdn.paradyne.com> Reply-To: dave@viper.Lynx.MN.Org (David Messer) Organization: Lynx Data Systems, Eagan, MN Lines: 26 In article <6801@pdn.paradyne.com> dave@rnms1.paradyne.com (Dave Cameron ) writes: >>In article <6791@pdn.paradyne.com> dave@rnms1.paradyne.com (Dave Cameron ) writes: > >[concerning how fast the Challenger crew would have lost consciousness] > >time of useful consciousness (not time to total loss) is: > >for 40,000 ft - 15 sec >above 65,000 ft - < 9 sec > >(source - USAF Manual 160-5) > >below 40k things improve rapidly, for example at 30k it is 1 1/2 min >and only 2k lower it is 2 1/2 - 3 min I wonder how they define "useful" consciousness... I have heard that one would stay conscious for thirty seconds or so in a total vacuum, but I don't know how "useful" it would be. Given that they almost certainly lost consciousness, the next morbid question is whether they regained it once they got below 12,000 feet or so... I wonder why people want to know such things. -- Remember Tiananmen Square. | David Messer dave@Lynx.MN.Org -or- | Lynx Data Systems ...!bungia!viper!dave