However, you may not be aware of the potential fortune you have hoarded away that could be worth ... pennies in circulation today. During World War II, pennies were made of steel to save copper ...

Certain 1982 pennies can be worth a lot due to their rarity and unique characteristics tied to a transitional year in U.S. coin minting. In 1982, the U.S. Mint switched from using copper (weighing ...

Lastly, almost all pennies minted in 1982 and after are worth relatively nothing (outside of a few rare instances) due to the usage of lower-cost materials — far less copper being present ...

This article was originally published with the title “ Saving Uncle Sam's Pennies ” in Scientific American Magazine Vol. 125 No. 16 (October 1921), p. 272 doi:10.1038 ...

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 ...

A copper penny is heated and suspended above the surface of acetone in a beaker. The copper demonstrates heterogenous catalysis in the combustion of acetone to carbon dioxide and water. This exotherm ...

This penny somehow missed the 1944 transition from steel-coated zinc to copper, and it’s worth a fortune as a result. Just two copies of the San Francisco-minted version remain. Circulating ...

When it comes to valuable coins, pennies aren’t often what first comes to mind. With that being said, there are several pennies that are worth a fortune ... although a few copper examples ...