l real quick some breaking news to report, our producers told me that actually, t.j. stands for tito joe after joe the patriarch of the family, not, not tito jr. of the family, not tito jr. wanted to be clear on that. now we can move on. the opening ceremonies of the olympic are just hours away. by the way, you should get a gold medal for clarifying that, okay, wound its way through london. end of an 8,000-mile journey. now it will be the athletes turn, and bill weir and secrets of the science behind your favorite hot olympic stars. reporter: exhibit a, michael phelps. first he was born with ridiculously long arms. stand imposing 6 4 , his wing span is 3 inches longer and uses so much energy digging them into pool water hour after hour he out-eats the average american male by 10,000 calories a day. there will be a lot of ice tubs, massages, trying to cram calories into my system in as
so much energy digging them into pool water hour after hour he out-eats the average american male by 10,000 calories a day. there will be a lot of ice tubs, massages, trying to cram calories into my system in as much as i can. lochte, used to get calories from junk food. he refined his diet and workout that includes moving anchor chains and tires in addition to swimming around 70 miles a week. while the average person doing the crawl at the y can propel themselves about four feet per stroke, gold medalist rebecca soni goes 50% farther. when our friends at espn sports science put sensors on her hands they found out why. each stroke generates up to 24 pounds of force, and while the average person is stronger on one side, and veers off of course, her stroke is almost perfectly balanced. over in track and field, jesse williams can jump higher than