1. Vacuum Flask — 2023-10-09 23:46:28

   …ween and silvering on the inner walls helped to reflect heat. He was knighted in 1904 and died on March 27, 1923. == Cordite == Dewar is also the joint inventor of cordite with **Sir Frederick Abel** in **1889**. The disadvantage of gunpowder…
   … was that it gave away the location of the gunman with a smoke signal. Cordite is a smokeless propellant to replace gunpowder as a military propellant. Cordite was used for large weapons, such as ta…
   …y and naval guns. It was also used in the .303 British, Mark I and II, standard rifle cartridge between 1891 and 1915. Cordite has been used since World War I till around the end of the 20th century, with the closure of the last World War II Cord…

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