Let me start off by saying I hate the Patriots, but I love Rob Gronkowski. His ability to get to the ball so quickly as a tight end amazes thousands. Because of his large mass, he is able to plow through other players and catch the ball as he so often does. The way the ball just perfectly lands in his arms is insane, and it all relates to physics, obviously. Rob Gronkowski is able to carefully calculate the trajectory of the projectile, or the football, and where it will eventually land. That makes it easy for him to run to that spot, and make those awesome catches.