There's a follow-up here: <a href="http://news.ycombinator.com/item?id=4034487" rel="nofollow">http://news.ycombinator.com/item?id=4034487</a><p>This to accompany some previous submissions:<p>* <a href="http://news.ycombinator.com/item?id=4028756" rel="nofollow">http://news.ycombinator.com/item?id=4028756</a><p>* <a href="http://news.ycombinator.com/item?id=4029599" rel="nofollow">http://news.ycombinator.com/item?id=4029599</a><p>* <a href="http://news.ycombinator.com/item?id=4029676" rel="nofollow">http://news.ycombinator.com/item?id=4029676</a><p>* <a href="http://news.ycombinator.com/item?id=4031332" rel="nofollow">http://news.ycombinator.com/item?id=4031332</a><p>* <a href="http://news.ycombinator.com/item?id=4031625" rel="nofollow">http://news.ycombinator.com/item?id=4031625</a><p>* <a href="http://news.ycombinator.com/item?id=4034225" rel="nofollow">http://news.ycombinator.com/item?id=4034225</a><p>* <a href="http://news.ycombinator.com/item?id=4046994" rel="nofollow">http://news.ycombinator.com/item?id=4046994</a><p>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:<p>* <a href="http://www.reddit.com/r/worldnews/comments/u7551/teen_solves_newtons_300yearold_riddle_an/c4sxd91" rel="nofollow">http://www.reddit.com/r/worldnews/comments/u7551/teen_solves...</a><p>* <a href="http://math.stackexchange.com/questions/150242/teenager-solves-newton-dynamics-problem-where-is-the-paper" rel="nofollow">http://math.stackexchange.com/questions/150242/teenager-solv...</a>