Shooting an 18-millimeter-diameter ballistic into a wall of water at 9,000 miles per hour is wild and unprecedented, but the U.S. Navy is throwing money behind the project out of sheer curiosity. And ...

I wish Angry Birds had been around when I was teaching high school physics. 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 ...