tim@ism780c.UUCP (Tim Smith) (01/18/86)
In "Surely You're Joking, Mr. Feynman", ( which is now out in paperback, so there is no excuse not to have read it... ), he mentions a problem involving rotating sprinklers ( the "S" shaped ones, that are made to rotate by a jets of water, thus spraying water all over the area to be sprinkled ). The problem is to figure out which way the sprinkler would rotate if you placed it underwater, and sucked water into the sprinkler. Arguments are given in the book for both directions. His attempted expermental solution yeilded no results before the explosion ( read the book for more details... ), and he never does give the answer. Could someone who knows please post the answer here? -- Tim Smith sdcrdcf!ism780c!tim || ima!ism780!tim || ihnp4!cithep!tim