Original from the University of California | Ley, Geschichte der Rakete, 1932 |
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Original from the University of Michigan | Edgerton, David 2012 , Penguin Books, p |
1610, adopted from the Italian term.
International Journal of Engineering IJE | Original from the University of Michigan |
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Original from the University of Michigan | Rough Translation: [Year 1232] Among the weaponry at the defense city [Kaifeng] are the "thundercrash", which were made of iron pot, and filled with drugs [black powder], when lighted with fire, it exploded, making a noise like thunder |
Original from the University of Michigan | Original from the University of California |
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at the US National Park Service, Fort McHenry National Monument and Historic Shrine |