Unbelievable! This 20 carat gold nugget can float on milk foam
Scientists in Switzerland have developed a 20 carat gold nugget that is thousand times lighter than conventional forms of the precious metal and can float on milk foam.
Nov 27, 2015, 12:01 PM ISTScientists make real gold as light as air
The so-called aerogel is a thousand times lighter than conventional gold alloys.
Nov 26, 2015, 14:19 PM IST