Chemical element of metals. Cu comes from Cuprum, Fe comes from Ferrum, Ag from Argentum. The symbols were not followed by a period (full stop) as with abbreviations. Later chemical elements were also assigned unique chemical symbols, based on the name of the element, but not necessarily in English. For example, sodium has the chemical symbol 'Na' after the Latin "natrium". The same applies to "W" (wolfram) for tungsten, "Fe" (ferrum) for iron, "Hg" (hydrargyrum) for mercury, "Sn" (stannum) for tin, "K" (kalium) for potassium, "Au" (aurum) for gold, "Ag" (argentum) for silver, "Pb" (plumbum) for lead, "Cu" (cuprum) for copper, and
Silver bullet Silver bullet In folklore, a bullet cast from silver is often the only weapon that is effective against a werewolf, witch, or other monsters. The term is also a metaphor for a simple, seemingly magical, solution to a difficult problem: for example, penicillin was a silver bullet that cured many bacterial infections. Silver bullets also act as a calling card for The Lone Ranger in his adventures. The masked man decided to use bullets forged from the precious metal as a symbol of justice, law and order, and to remind himself and others that life, like silver, has value and