If your aim is merely to make something sharp enough that it can cut, you can make a knife out of a whole lot of things. Virtually any sort of metal, to begin with, so long as you have the heat to ...

There’s nothing odd about this. There’s nothing surprising about it either. If you watch a very hot knife cut through a piece of styrofoam, it’s going to be exactly as satisfying as you’d think it’d ...

An curved arrow pointing right. A YouTube channel has released a new video in their "Oddly Satisfying" series, which shows a hot knife cutting through a block of polystyrene. The clip was featured on ...

Make enough attempts to cut foam using whatever you’ve got — utility knife, hacksaw, serrated plastic knife — and you’ll wish hard for something that cuts cleaner, faster, and better. While there are ...