The Unwise Microwave Experiment guy shows how to melt a beer bottle in a microwave oven. You have to prep the bottle by using a blowtorch to make a red hot spot on the bottle.
Stick around for the end of the demo to hear his explanation of how it works.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.