ポリボロス

thumb|Arsenal of ancient mechanical artillery in the Saalburg, Germany; left: polybolos reconstruction by the German engineer Erwin Schramm (1856–1935) thumb|A modern reconstruction of the repeating "polybolos" catapult of Dionysius of Alexandria, in Museum of Ancient Greek Technology|Kotsanas Museum of Ancient Greek Technology, [[Athens, Greece.]] The polybolos (the name means "multi-thrower" in Greek) was an ancient Greek repeating ballista, reputedly invented by Dionysius of Alexandria (a 3rd-century BC Greek engineer at the Rhodes arsenal,) and used in antiquity. The polybolos was not a cr