Show speedometer for fish we have a fair idea how fast most animals run and birds fly but only hazy notions about the speeds of fish earl thompson a nova scotia angler has devised a special speedometer which registers speed in miles per hour as his line runs out this invention should be of value to scientists investigating marine life for with it they will be able to gauge the speeds of ocean monsters like whales sharks and swordfish mr thompson was asked last summer to collaborate with the boston natural history museums museum and his most interesting catch was a 60 pound tuna which raced out to sea with the line at 44 miles an hour in the summer he hopes to clock an |