Coming of the White Man [SEP] material used
Coming of the White Man
Coming of the White Man is an outdoor bronze sculpture by American artist Hermon Atkins MacNeil, located in Washington Park, Portland, Oregon in the United States. The statue, gifted to the City of Portland in 1904 by former mayor David P. Thompson and installed the following year, depicts two Native American men, including Chief Multnomah, looking towards the Columbia River upon the arrival of Lewis and Clark.
Description and history.
"Coming of the White Man" is a statue designed by
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