A Mother's Duty [SEP] material used
A Mother's Duty
A Mother's Duty (1658–1660) is an oil on canvas painting by the Dutch painter Pieter de Hooch. It is an example of Dutch Golden Age painting and is part of the collection of the Amsterdam Museum, on loan to the Rijksmuseum.
Description.
This painting by Hooch showing a woman delousing a child's hair, was documented by Hofstede de Groot in 1910, who wrote; "71. MOTHER COMBING HER CHILD'S HAIR. Sm. 33, 4, 67 ; de
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