Professor Alexander Todorov showed the students in his freshman seminar a series of images of the same blurry face - with the hint that it was a non-American political leader - as it would appear from 200, 100 and 50 meters. At 50 meters, only one student figured out who it was - Italian Prime Minister Silvio Berlusconi.
Archive – October 2011
It's called an invisible injury, yet it affects hundreds of thousands of athletes each year. From professional boxers and college football stars, to high school soccer players and kids competing in schoolyard baseball games, concussions can be a significant injury for anyone playing sports.