Jadeite Cabbage [SEP] material used
Jadeite Cabbage
The Jadeite Cabbage () or Jadeite Cabbage with Insects is a piece of jadeite carved into the shape of a Chinese cabbage head, and with a locust and katydid camouflaged in the leaves. It is part of the collection of the National Palace Museum in Taipei, Taiwan.
Despite its popularity with museum-goers and frequent misrepresentation as a national treasure, it in fact is only designated as a significant antiquity, having less rarity and value than required for categorization as a national treasure under the Cultural Heritage Preservation
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