Smarter Every Day
So, shooting an AK-47 underwater. Just sounds like something some redneck would do. That is until you get out the insanely high-speed camera, and start taking a serious look at what the physics involved do. The coolest thing is seeing the resulting air-bubbles, some of which are NOT what you would think, not only expand and collapse, but then, for some bizarre reason, expand again and again. It is fascinating.