The Weird History and Myths of the Mercury Knife
I remember the first time I heard someone whisper regarding a mercury knife as though it was some sort of top-secret alien technology. This was one of those late-night conversations in a dive bar where everybody thinks they're a professional on military equipment despite never having served. The way they described it, the knife was basically magic—a cutting tool that could never ever miss its focus on and would hit with the pressure of a sledgehammer because of some "secret liquid metal" inside. ...