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Article #4217Re: dimensionality of space
From: zellner
Date: Sat, 07 Nov 1992 06:32
Date: Sat, 07 Nov 1992 06:32
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In article <1992Nov06.211115.134895@watson.ibm.com>, lucas@watson.ibm.com (Bruce D. Lucas) writes: > How do we know space is three-dimensional, or space-time > four-dimensional? Is there a simple experiment one can do to > determine the dimensionality of space or of space-time? Keplerian orbits of planets around the sun. They are stable in 2 or 3 dimensions, but I think not in most higher dimensionalities or in things like 3 + delta dimensions. Can someone confirm that? Ben
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arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!swrinde!elroy.jpl.nasa.gov!ncar!noao!stsci!stosc!zellnerReferences:
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Newsgroups: sci.physics Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!swrinde!elroy.jpl.nasa.gov!ncar!noao!stsci!stosc!zellner From: zellner@stsci.edu Subject: Re: dimensionality of space Message-ID: <1992Nov7.013240.1@stsci.edu> Lines: 11 Sender: news@stsci.edu Organization: Space Telescope Science Institute References: <1992Nov06.211115.134895@watson.ibm.com> Distribution: na Date: Sat, 7 Nov 1992 06:32:40 GMT