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Swiss scientists make gold nugget ‘as light as air’

Cecilia Jamasmie | December 01, 2015 | 10:35 am Precious Metals Europe Gold 

[caption id="attachment_839865" align="aligncenter" width="600"] The 20-carats gold nugget floats on top of milk foam. (Photo: Gustav Nyström and Raffaele Mezzenga | ETH Zurich)[/caption] A team of Switzerland-based researchers have created a gold-foam material from protein fibres derived from milk that is...

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