Marcel duchamp wrote: > BTW, the industry term for this is "accident reconstruction". Ah... the old story: finding the right search terms :) Thanks! A bit OT for this OT thread: http://mfes.com/rudy.htm lists some errors in an SAE book about brake design and safety due to conversion problems between different systems of units ("22 N should be 445 N (100 pounds is correct, and 1 pound equals 4.448 Newtons)"). It seems that this problem is not confined to mars rovers... Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist