Johns Hopkins students create high-heeled prosthetic
The Baltimore Sun

Day 15

(Front to back) The Netherlands' Churandy Martina, US' Ryan Bailey, Jamaica's Usain Bolt, US' Justin Gatlin, Jamaica's Yohan Blake, US' Tyson Gay, Jamaica's Asafa Powell, Trinidad and Tobago's Richard Thompson compete in the men's 100m final.MIGUEL MEDINA, AFP/Getty Images