Vera Wang is a fashion designer from the United States.
A machine is a tool containing one or more parts that uses energy to perform an intended action .. tool. tool. energy. energy. Machines are usually powered by chemical , thermal , or electrical means , and are often motorized .. powered. Work ( physics ). thermal. thermal. motorized. Engine. Historically , a power tool also required moving parts to classify as a machine .. tool. tool. power tool. power tool. However , the advent of electronics has led to the development of power tools without moving parts that are considered machines .. electronics. electronics. A simple machine is a device that simply transforms the direction or magnitude of a force , but a large number of more complex machines exist .. simple machine. simple machine. magnitude. magnitude ( mathematics ). force. force. Examples include vehicles , electronic systems , molecular machines , computers , television , and radio .. television. television. radio. radio