Portal:Technology/DYK/15


 * ... that the Chemical Automatics Design Bureau produced the Soviet Union's only operational nuclear rocket engine?
 * ... that the Persian king Cyrus the Younger invented the scythed chariot (pictured)?
 * ... that Mercedes Reaves, a Puerto Rican research engineer and scientist, is responsible for the design of a viable, full-scale solar sail at the NASA Langley Research Center?

Source

 * 1) Recent additions NUMBER, Numbered archive of Main Page appearance.
 * 2) Recent additions NUMBER, Numbered archive of Main Page appearance.
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