The Heart of the Andes [SEP] material used
The Heart of the Andes
The Heart of the Andes is a large oil-on-canvas landscape painting by the American artist Frederic Edwin Church (1826–1900).
At more than five feet (1.7 metres) high and almost ten feet (3 metres) wide, it depicts an idealized landscape in the South American Andes, where Church traveled on two occasions. Its exhibition in 1859 was a sensation, establishing Church as the foremost landscape painter in the United States.
The painting has been in the collection of
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