Mining for Gold (GOLD!)

From pharaohs' tombs in Ancient Egypt and medieval currency, to priceless royal jewellery and Spandau Ballet songs - gold has been prized for millennia. But it's only really in the last century or so that we've started uncovering its usefulness in less decorative applications. Today, gold is used in masses of electricals; it's also revolutionised part of the manufacturing sector by stopping a…