Diadumenos [SEP] material used
in the bronze original of about 420 BCE would have been represented by a ribbon of bronze. The figure stands in contrapposto with his weight on his right foot, his left knee slightly bent and his head inclined slightly to the right, self-contained, seeming to be lost in thought. Phidias was credited with a statue of a victor at Olympia in the act of tying the fillet around his head; besides Polyclitus, his successors Lysippos and Scopas also created figures of this kind.
Roman copies.
Both Pliny
to cathodically protect metals that are exposed to sea water. A zinc disc attached to a ship's iron rudder will slowly corrode while the rudder stays intact. Similarly, a zinc plug attached to a propeller or the metal protective guard for the keel of the ship provides temporary protection.
With a standard electrode potential (SEP) of −0.76 volts, zinc is used as an anode material for batteries. (More reactive lithium (SEP −3.04 V) is used for anodes in lithium batteries ). Powdered zinc is used in