From: utzoo!decvax!decwrl!sun!megatest!fortune!hpda!hplabs!sri-unix!KING@KESTREL Newsgroups: net.physics Title: Re: Equinocturnal Egg Standing Phenomenon Article-I.D.: sri-arpa.771 Posted: Wed Mar 30 16:27:00 1983 Received: Sat Apr 2 04:46:26 1983 From: Richard M. King I have no idea whether it is, indeed, possible to balance an egg on its big end only at the equinox. This requires careful testing. If it is true, I would rather suspect that the explaination rests in the differing properties of eggs laid at different times of the year, rather than in the truly minescule differences in the forces that the Sun exerts on the egg during the equinox and at other times. Obvious candidates include radius of curvature, yolk position, yolk volume, and yolk density Dick -------