- Copper: One-cent coins (pennies) were made of copper.
- Nickel: Five-cent coins (nickels) were made of an alloy called "cupronickel", which is composed of 75% copper and 25% nickel.
- Silver: Ten-cent coins (dimes), twenty-five-cent coins (quarters), and fifty-cent coins (half dollars) were made of an alloy called "sterling silver", which is composed of 92.5% silver and 7.5% copper.
- Gold: One-dollar coins ($1) were made of gold.
About 85 kilometers from Florence is the city of Pisa where the Leaning Tower is located. Galileo, the inventor of the telescope, was born in this city of Pisa in AD 1564. We reached the railway station on time. There is a train from Florence to Pisa every half hour. There were many halls in which t
Although swords vary greatly in their handling and many different sword shapes have evolved since the first swords of the Bronze Age, most are based on a similar construction. In this article we present the individual components of the sword and their functions. Blade and tang A blade consists
A study of the oldest radiocarbon-dated ice sheets on the Col du Dôme glacier, 4,300 meters above sea level in the Mont Blanc massif, provided researchers with a record of atmospheric conditions in Roman times. The analyzed ice comes from the Ice Memory project , promoted by French and Italian glac
“War is too serious a matter to be left in the hands of the military” . The ingenious phrase pronounced by the former prime minister of the French Third Republic, Georges Clemenceau, has come true many times throughout history with fudges such as the charge of the Light Brigade, the landing at the B