Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uwm.edu!ogicse!milton!hlab
From: well!naimark@apple.com (Michael Naimark)
Newsgroups: sci.virtual-worlds
Subject: Re:  WithDesignInMind ?? (somewhat long)
Message-ID: <1991Apr7.062751.8964@milton.u.washington.edu>
Date: 7 Apr 91 00:44:40 GMT
Sender: hlab@milton.u.washington.edu (Human Int. Technology Lab)
Organization: Human Interface Technology Lab, Univ. of Wash., Seattle.
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Approved: cyberoid@milton.u.washington.edu


I don't know for sure, but I'd bet this system uses a single standard video
display reflected off of a large concave mirror, creating a real (as opposed
to virtual) image floating in front of the mirror's surface. This has been
used in the past for "floating genies" as well as the "floating nickel"
illusion available at many science museum shops. It's a good hack when
used well.