From: utzoo!mark
Newsgroups: net.misc
Title: Re: Clock Problem 
Article-I.D.: utzoo.2774
Posted: Fri Jan 21 19:54:01 1983
Received: Fri Jan 21 19:54:01 1983
References: utcsrgv.915 

the problem's solution (that the "clock" is only a display for a distant,
fixed, clock) has already been posted by several people.

to those claiming that special relativity does not apply, since the clock
is accelerated:  this is true, but the motion still causes time dilation,
AND THE ACCELERATION DOES TOO.  if you swung a real clock about your head,
it would lose time faster than SR alone leads you to expect.

the experiment was done some years ago (sorry, i have no references):
someone carried an atomic clock around the world by commercial airliner.  it
lost time wrt the one left on the ground.

				mARK bLOORE
				univ. of toronto