See on Scoop.it – History and Social Studies Education

“Usain Bolt’s 9.63 set an Olympic record in the 100. So how far ahead of every Olympic medalist is he?”

The race was spectacular, but how fast were these medalists compared to other Olympians from different eras?  Literally, Yohan Blake, Justin Gaitlin and Tyson Gay would have all beat every Olympian ever expect Usain Bolt.  Humanity is constantly pushing the physical limits of human physicality with technology.  What are the limits of this historical trend?

See on www.nytimes.com