Article View: sci.astro
Article #4772Re: pi (was Re: Is lightvelocity accelerating?)
From: son3776
Date: Mon, 20 Mar 1995 22:42
Date: Mon, 20 Mar 1995 22:42
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2241 bytes
Carl J Lydick (carl@SOL1.GPS.CALTECH.EDU) wrote: > In article <3kab8t$h4l@utdallas.edu>, son3776@utdallas.edu writes: > => Huh? The circumference-to-diameter ratio does not generally equal pi > => for finite circles on curved surfaces. On a sphere, for instance, a > => circle with nonzero diamater does not have a C/d ratio of pi > => _anywhere_ on its surface. Only in the limit where the curvature goes > => to zero or when the diameter of the circles goes to zero do you get > => C/D going to pi. > = > =Draw a circle on the earth, cut through the ground to get the diameter, > =and you'll get C/D and pi. > Now we see one of son's problems: He hasn't a clue as to the meaning of the > term "surface." I know what the surface of the earth is. And I know that if one cuts through the earth to get the correct diamter for a planar circle, then the relationship is pi=C/D. -- "Somewhere else the tea's getting cold." -- The Doctor
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: ff8cf,7d15a3c97705a5a5 X-Google-Attributes: gidff8cf,public X-Google-Thread: f44bc,7d15a3c97705a5a5 X-Google-Attributes: gidf44bc,public X-Google-Thread: fa827,7d15a3c97705a5a5 X-Google-Attributes: gidfa827,public X-Google-Thread: 1038c2,7d15a3c97705a5a5 X-Google-Attributes: gid1038c2,public X-Google-Thread: f74ae,7d15a3c97705a5a5 X-Google-Attributes: gidf74ae,public X-Google-ArrivalTime: 1995-03-20 14:42:36 PST Path: arc1-ca.pugleaf.net!nntp.gmd.de!Germany.EU.net!EU.net!news.sprintlink.net!cs.utexas.edu!news.tamu.edu!news.utdallas.edu!not-for-mail From: son3776@utdallas.edu Newsgroups: sci.astro,sci.skeptic,alt.sci.physics.new-theories,swnet.sci.astro,fj.sci.astro Subject: Re: pi (was Re: Is lightvelocity accelerating?) Followup-To: sci.astro,sci.skeptic,alt.sci.physics.new-theories,swnet.sci.astro,fj.sci.astro Date: 20 Mar 1995 16:42:36 -0600 Organization: The University of Texas at Dallas Lines: 21 Distribution: world Message-ID: <3kl0cs$hvn@utdallas.edu> References: <3k1opb$6iq@utdallas.edu> <6Bmy2c2w200w@alcyone.darkside.com>,<3kab8t$h4l@utdallas.edu> <3kcjlv$t3h@gap.cco.caltech.edu> NNTP-Posting-Host: infoserv.utdallas.edu NNTP-Posting-User: 5319 X-Newsreader: TIN [version 1.2 PL2]