Dr Peter Wothers weighs a volunteer from the 2012 Christmas Lectures audience with 24 carat pure gold. Finding himself a little short of the right amount, he calls in help from famous chemist Sir Harry Kroto and his gold Nobel Prize medal (awarded in 1996 for his discovery of a new form of Carbon, C60). <br /><br />Calculate your weight in gold:<br />Current gold prices: http://www.wolframalpha.com/input/?i=gold+price<br />Weight in gold calculator: http://www.onlygold.com/tutorialpages/yourweightingold.asp<br /><br />Watch The Modern Alchemist series in full on the Ri Channel: http://bit.ly/VJM09x<br /><br />The Ri is on Twitter: http://twitter.com/ri_science<br />and Facebook: http://www.facebook.com/royalinstitution<br />Subscribe for the latest science videos: http://richannel.org/newsletter
