In the Projectile Motion episode of NBC Learn's "The Science of NFL Football," you see that punted footballs travel in an arc known to mathematicians as a parabola.

Atlatl darts tipped with 25 replicated Folsom points hafted in five different foreshaft designs were propelled into bovine rib cages to simulate projectile impact. Replicated Folsom weaponry proved ...

Please don’t think of the game as a hate crime against hogs, or an avian anger management program—instead, think of it as a computer interactive lab to explore projectile motion and force ...

Actually, projectile motion is now two labs. In the first lab, the goal is to measure the launch speed (with uncertainty) and then the second lab looks at projectile motion.

A United States space projectile early on Monday collided head-on with a comet hurtling through the solar system as part of an experiment to study its core. ''That's awesome! That's awesome ...