There are some inventions that look completely pointless to the untrained eye: who would ever need a motorized garbage can, an electric pencil sharpener or a battery-powered eraser? Quite often ...

Following is transcript of the video. Celia Skvaril: Today, I'm trying the Bleame Crystal Hair Eraser. It claims to be the easiest, most painless form of hair removal. It says that it works by ...