From: utzoo!decvax!harpo!seismo!hao!hplabs!sri-unix!KING@KESTREL Newsgroups: net.space Title: tidal force inverse cube law Article-I.D.: sri-unix.4981 Posted: Thu Dec 30 13:43:09 1982 Received: Sat Jan 1 02:07:34 1983 From: Richard M. KingCome on! We don't have to "look up" the dependency of tidal forces on distance! The tidal force is the first derivitive of gravity with distance. Since gravity is D^-2, the tidal force is D^-3. Dick -------