Random factoid: You know real gold is malleable, right? That’s why you see prospectors, exchangers and ‘testers’ biting down on gold nuggets and trinkets. To see if they can ‘dent’ them. See, you can bite a mark into real gold; most other metals, not so much. On that point: You can bite indium, too. It is much softer than gold though; in fact, the softest metal you can hold in your hand! Watch the clip above. Learn what you can do to and with a bit of indium.