You've probably never even heard of osmium (no relation to Donny Osmond). That may be because 1) You are not a dork, and 2) It is the rarest metal in the world. It also has some interesting properties. It is an unreactive, very hard metal, which is used in fountain pens but add four oxygens and it becomes a different beast - one that can blind you.
You've probably never even heard of osmium (no relation to Donny Osmond). That may be because 1) You are not a dork, and 2) It is the rarest metal in the world. It also has some interesting properties. It is an unreactive, very hard metal, which is used in fountain pens but add four oxygens and it becomes a different beast - one that can blind you.