Newsgroups: sci.aeronautics.airliners
Path: news
From: dmarble@magnus.acs.ohio-state.edu (Duane F Marble)
Subject: Re: New Scientist article
X-Submission-Date: Wed, 9 Dec 1992 14:05:55 GMT
References: <airliners.1992.105@ohare.Chicago.COM>
Message-ID: <airliners.1992.116@ohare.Chicago.COM>
Approved: kls@ohare.Chicago.COM
Organization: The Ohio State University
Sender: kls@ohare.Chicago.COM
X-Submission-Message-Id: <1992Dec9.140555.25889@magnus.acs.ohio-state.edu>
Date: 09 Dec 92 18:45:33 PST

A small point with respect to the material quoted from the New
Scientist: Global Positioning System (GPS) birds do not "observe"
anything, they just permit a ground based unit to compute it's
location.
-- 
Duane F. Marble			       E-mail: dmarble@magnus.acs.osu.edu
Department of Geography                Telephone: (614) 292-2250
The Ohio State University
Columbus, Ohio 43210                   Fax: (614) 292-6213