Sales of 90,000 commemorative coins to celebrate Pope Francis' Aug. 14-18 visit to South Korea have begun through reservations at commercial banks, the state mint said on Wednesday. Up for sale are 30 ...

A copper penny appears to turn to silver after heating in an evaporating dish with a mixture. The penny then appears to turn to gold when heated in a flame. Heat causes a fusion of zinc and copper to ...

The Royal Numismatic Society is the UK’s foremost society for numismatics – the study of coins, medals and related currency items. Founded in 1838 as the Numismatic Society of London, today’s society ...

Heating pennies in a zinc solution creates a brass alloy that looks like gold, demonstrating chemical reactions in metals. What Kimmel said about Charlie Kirk that yanked his show off air Blue city’s ...