Do you know about silver ? - Silver means "Ag". This sign comes from its latin mean "argentum " - Silver is used as protective material from microorganism. - Small story about it "when Alexzander the great entered in India with his army,after some period of time his soldiers are suffering from intestinal infection but Alexzander and his main people are not infected because they used plates and glasses which we're made from Silver. why silver shines?