The earliest of the American Arts gold medals were comprised of gold with some copper, while the later medals are gold mixed with silver alloy. Why don’t the gold and silver medals trade for a higher ...

Tiny scrolls tucked into Tibetan statuettes; images lying in wait in mirrors. An exhibition turns the spotlight on 75 bronze ...

The novel bulk copper-tantalum-lithium (Cu-3Ta-0.5Li) nanocrystalline alloy exhibits notable resistance to coarsening and creep deformation, even at temperatures near its melting point. The discovery ...

The ministry stated that it has issued a notification , to restrict import of alloys of Palladium, Rhodium, and Iridium containing more than 1 per cent gold by weight. Directorate General of ...