From: utzoo!decvax!pur-ee!jarvis Newsgroups: net.math Title: Re: six-inch hole - (nf) Article-I.D.: pur-ee.483 Posted: Tue Aug 3 01:26:07 1982 Received: Wed Aug 4 01:32:07 1982 #R:azure:-108100:pur-ee:6600004:000:261 pur-ee!jarvis Aug 2 23:39:00 1982 Since the hole must go through the center the radius is three inches. Since the length of a hole through a sphere can be defined only for an infinitely thin hole the volume is unchanged. V=4*pi*3sup(3) [I hope I remembered the equation correctly]