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Usain Bolt is
"the
world's
fastest man"
because he has the
record for the 100
meter sprint at
9.58 seconds. But
could runners go
faster
(more)
Usain Bolt is "the world's fastest man" because he has the record for the 100 meter sprint at 9.58 seconds. But could runners go faster? WIRED's Robbie Gonzalez explores the science of extreme sprinting speed.