Physics of Guns Underwater

I enjoyed watching this guy explain the physics of a rifle shot occurring underwater. He brings in a slow-motion video capture team. We get to see a bunch of video from various angles underwater as the rifle fires. There are some (over my head?) explanations about what is going on with the physics. It is reminiscent of the explanations I have heard of the universes’ Big Bang, expansion, collapse, and expansion. Also, I had no idea how far a round from a rifle would travel underwater. Not to far, apparently.

Coolest part? The potential sonoluminescence. Never heard of it before, but it is pretty sweet. Even if it isn’t occurring here, as the host notes, the concept is interesting.

Thanks to the Smarter Every Day team. Great video. You earned my subscription!