World’s Most Powerful Air Vortex Cannon Will Blow you Away

To celebrate their twentieth anniversary of sandwich making, the folks from Erbert & Gerbert built what they call “the world’s most powerful air vortex cannon”. Enjoy! No idea on how large this thing really is, but according to the cannon’s official website, it’s about as big as the Appolo space capsule, and a little bit […]

Simple tricks for doing arithmetic in your head

Some of you geeks probably have a slide-rule in your head — there I go dating myself again (and we all know that dating yourself isn’t sexy), I should have said “math processor” or “calculator”.  Anyway, I am personally much better than average at math, but I still can’t do some of the bigger problems in my […]