Feb 11, 2019· He invented devices for science and war and discovered the basic principles of mathematical calculus. While his inventions were better known than his theories during his lifetime, the reverse is true in modern times. The discovery of Archimedes' principle is one of the bestknown stories about this great thinker.
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Washing Trommel – The Unique Mining Machinery Friday, 15 August 2014 13:35 Ethan Fox. Washing trommel, or trommel washer, or washing drum, is a type of screening equipment that is extensively used in the mining industry. It is a cylindrical tube that cleans a particular material (gold in most cases) by removing the unnecessary compounds.
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