From: utzoo!decvax!harpo!eagle!mhtsa!alice!rhm
Newsgroups: net.physics,net.rumor
Title: Re: Equinocturnal Egg Standing Phenomenon
Article-I.D.: alice.1723
Posted: Fri Apr  1 08:47:56 1983
Received: Sat Apr  2 04:52:42 1983
References: <4821@watmath.UUCP>

I'm sure that assymetric tidal forces are a factor.  These questions are
discussed at considerable length in a book named "The Theory of the Top"
by Felix Klein (translated from the German "Theorie des Kreisels").