Remember when master knifemaker Bob Kramer came to the PopSci office just to slice our soda cans in half? Great fun! But how we wished we had had an ultra-slow-motion camera like the Phantom on hand that day.
We couldn't just let it go. So, armed with our own Kramer knife and our Phantom, we attempted to replicate the feat. It took a little practice, a lot of sharpening, and a pretty high knife-tip velocity, but here's the slow-mo video for your edification!
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.