Neodymium magnets are incredibly strong, so strong that they squash all sorts of stuff to bits very dramatically when caught in slow-motion. It’s a great demonstration of their strength, but the most impressive thing in this video is an apple that doesn’t get squished.
The magnets come together so fast that the apple shoots off into the air, but the magnets still connect. They smash hard enough that one shatters, and the bits get pulled right back in rather than flying off after the apple.
See the video after the break.