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Re: Hollow Earth

Given NO assumptions (except "at the Poles", so no coriolis), i.e. the "real
world",
it would drop till the air density increased to the point that it would
float.

Cheers,
Bill Larson
Geneva, Switzerland

----- Original Message -----
From: Bob Yeend <ryeend@EARTHLINK.NET>
To: <PHYS-L@lists.nau.edu>
Sent: 2000 April 24 10:40 PM
Subject: Re: Hollow Earth


I think this thread started with a question about whether or not an object
dropped through a hole bored from the north to the south pole would
experience simple harmonic motion.

That seemed reasonable to me, given the assumptions - no friction,
temperature near core wouldn't melt the object, the earth is homogeneous .
.
.

Someone, however, (perhaps Leigh?) posted that it would not, but didn't
give
an explanation. Please help with the explanation.

Thanks,
bob yeend
Santa Ana, CA