Re: What happened? Could risk be higher?

Article View: sci.space.shuttle

Article #6119

#6119

From: Dave Cameron (Consultant)
Date: Thu, 21 Dec 1989 17:57

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In article <2991@viper.Lynx.MN.Org> dave@viper.Lynx.MN.Org (David Messer) writes:
>In article <6801@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:
      [data deleted]
> >(source - USAF Manual 160-5)
>
>I wonder how they define "useful" consciousness...  

It is defined as a state in which the person can:
   a) recognize a hazard and
   b) take controlled and effective action to correct it
(and therefore fly a plane)

By this definition some people are NEVER in a state of 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.

I have heard 9 seconds for SURVIVAL in vacuum, but that is from memory.
Any real answers out there ??

Dave "sometimes useful" Cameron

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!pdn!rnms1!dave
From: dave@rnms1.paradyne.com (Dave Cameron (Consultant))
Newsgroups: sci.space.shuttle
Subject: Re: What happened?  Could risk be higher?
Message-ID: <6852@pdn.paradyne.com>
Date: 21 Dec 89 17:57:28 GMT
References: <wZQjNdy00WBKQ0oJB9@andrew.cmu.edu> <5082@jane.uh.edu> <1989Nov29.163242.1165@utzoo.uucp> <6791@pdn.paradyne.com> <1989Dec1.040218.26158@utzoo.uucp> <6801@pdn.paradyne.com> <2991@viper.Lynx.MN.Org>
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Reply-To: dave@rnms1.paradyne.com (Dave Cameron )
Organization: AT&T Paradyne, Largo, Florida
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