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From: ech@pyuxll.UUCP (Ned Horvath)
Newsgroups: net.physics
Subject: Re: long lever - enough!
Message-ID: <390@pyuxll.UUCP>
Date: Fri, 12-Aug-83 01:42:52 EDT
Article-I.D.: pyuxll.390
Posted: Fri Aug 12 01:42:52 1983
Date-Received: Fri, 12-Aug-83 17:28:47 EDT
References: <153@ecn-ed.UUCP>
Organization: American Bell, South Plainfield NJ
Lines: 17

Can we please stop beating this dead horse?  The "answer" depends solely
upon the speed with which information propagates from A to B and vice versa.

	A to B: if B is waiting for her end to "move", then the speed
		of propagation is upper-bounded by the speed of SOUND
		in the lever material: for physical motions, the speed
		of sound is, by definition, the speed at which adjacent
		molecules interract and thereby "pass the word".

	B to A: the problem explicitly says that E-M radiation will be
		used, and just as above, the speed depends on the medium.
		No matter, the delay is still inversely proportional to
		the speed with which information propogates.

Enough?????

=Ned=