- ... 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
edit- Wikipedia:Recent additions NUMBER, Numbered archive of Main Page appearance.
- Wikipedia:Recent additions NUMBER, Numbered archive of Main Page appearance.
- Wikipedia:Recent additions NUMBER, Numbered archive of Main Page appearance.