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The butterfly valve has been in use since the late 18th century. James Watt used a butterfly valve in his steam engine prototypes. With advances in material manufacturing and technology, butterfly valves could be made smaller and withstand more-extreme temperatures.
The museum houses major jewelry pieces and art acquisitions of the dynasty of Muhammad Ali and his descendants, who ruled Egypt for nearly 150 years from 1805 until the 1952 movement. The mother of Princess Fatima had completed the construction of the western wing before her death, when her daughter had reached the age of eighteen.
Gold stater of Nectanebo II; Perfect Gold, or Fine Gold. One of the few coins minted for ancient Egypt is the gold stater, issued during the 30th Dynasty. The reverse of the gold stater shows a horse reared up on its hind legs. The obverse has the two hieroglyphs for nfr and nb: "Perfect gold", or a common-era term: 'Fine'-gold.
Egyptian finger and toe stalls are pieces of gold jewelry used in Ancient Egypt to protect digits during burial. Such stalls were used during the 18th Dynasty of Egypt, as well as other eras, and were thought to protect the deceased from both magical and physical dangers, such as damage which could occur during the mummification process. [1]
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In 2006, the giant Madagascar hissing cockroach (or Gromphadorhina portentosa) achieved high profile, short-lived popularity as live jewelry. [6] Fashion designer, Jared Gold, popularized the "roach brooch" trend with the inclusion of the giant Madagascar hissing cockroach in his 2006 collection.
Pinch valves employ an elastic tubing (sleeve/hose) and a device that directly contacts the tubing (body). Forcing the tubing together creates a seal that is equivalent to the tubing's permeability. [1] Air-operated pinch valves consist of an elasticised reinforced rubber hose, a type of housing, and two socket end covers (or flanges).
The Asyut Treasure is the name of an important Byzantine hoard of jewellery found near the city of Asyut, central Egypt.Discovered in mysterious circumstances in the early twentieth century, the treasure is now divided between the Kunstgewerbemuseum in Berlin, the British Museum in London and the Metropolitan Museum in New York City.