kaiser@pur-ee.UUCP (Kaiser) (08/22/84)
[Did you say bugs eat this ?] Posting for Hao-Nhien Vu. Reply to him please. Just change the last item in the address from 'kaiser' to 'vu'. Thank you. ------------------------------------------------------------------------- Problem>Hunters go south 50 miles, west 50 miles, shoot bear, go north 50 miles and are home. Find a location different from the North Pole where their home is. I think this is in one of Martin Gardner's articles: At some point in the Southern Hemisphere (you know, the Land Down Under ), going east/west 50 miles means making N ( N = 1, 2, 3, ... ) complete round(s) around the earth. Just start that 50 miles north of such point. The place where 50 miles east/west makes N complete rounds can be found: Let r = 50 / (2 N pi) and R = radius of the earth ( in miles ). Then that place is at Arccos(r/R) South. ===== "First, one's free, son..." Hao-Nhien Qui Vu {alberta, decvax, ihnp4, hao, harpo, seismo, ucbvax}pur-ee!vu -------------------------------------------------------------------------