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An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.
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Title: Senate Square, St. Petersburg, December 14, 1825: repression of the troop mutiny - watercolor by Carl Ivanovitch Kollman, 1825 depicts Decembrist uprising clashing with cavalry, with spectators watching. (new style December 26, 1825) Europe. Saint
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refining of uranium metal

  • In uranium processing: Conversion and isotopic enrichment

    ” Bombs charged with granular UF4 and finely divided Mg (the latter in excess) are heated to 500° to 700° C (930° to 1,300° F), at which point an exothermic (heat-producing) reaction occurs. The heat of reaction is sufficient to liquefy the conversion contents of the…

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