78917603 story Scientists Turn Gold Into Foam That's Nearly As Light As Air (www.ethz.ch) 70 Posted by Soulskill on Friday November 27, 2015 @12:20PM from the better-for-scrooge-mcduck-style-gold-swimming dept. Zothecula writes: Along with its use in jewelry, gold also has numerous applications in fields such as electronics and scientific research. It's a handy material, but – of course – it's also expensive. That's why researchers at ETH Zurich have developed a new way of making a small amount of gold go a long way. They've created a gold foam that looks much like solid gold, but is actually 98 parts air and two parts solid material (abstract). As an added bonus, the aerogel-type foam can also be made in non-gold colors such as dark red.