Teen solves Newton’s 300-year-old riddle

http://news.ycombinator.com/item?id=4029599

http://news.ycombinator.com/item?id=4029676

http://news.ycombinator.com/item?id=4031332

http://news.ycombinator.com/item?id=4031625

Consensus seems to be that he's found a closed-form solution of a 2D projectile with friction proportional to the square of the velocity:

http://math.stackexchange.com/questions/150242/teenager-solv...

http://www.reddit.com/r/worldnews/comments/u7551/teen_solves...