Re: curvature of buckets of water

[Bob Sciamanda <trebor@VELOCITY.NET>]

Thanks for bringing up the equivalence principle, John.  To paraphrase
Willie Nelson, "it was always on my mind", but I didn't want to
immediately provoke tangents :)  Now that the subject is open, it is
intriguing to consider (as you have!) that the E.P. asserts that whatever
unexpected effects we might observe in an accelerating (eg., rotating
magnet) must have their counterpart in a stationary magnet subjected to a
gravitational field - suggesting a whole different experimental attack!
EG., a magnet in free fall (in orbit?) might be worthy of careful
quantitative observation!  Any NASA history of such investigations?

-Bob

Bob Sciamanda
Physics, Edinboro Univ of PA (em)
trebor@velocity.net
http://www.velocity.net/~trebor


----- Original Message -----
From: John Denker <jsd@MONMOUTH.COM>
To: <PHYS-L@LISTS.NAU.EDU>
Sent: Sunday, July 04, 1999 9:28 AM
Subject: Re: curvature of buckets of water


> . . .
> I'm just beating the drum for the equivalence principle:  at any
particular
> point in space, an accelerated reference frame is indistinguishable from
a
> gravitational field.
> . . .
> Cheers --- jsd