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Who invented the polybolos?

Who invented the polybolos?

Dionysius of Alexandria
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.

How does a ballista work?

ballista, ancient missile launcher designed to hurl javelins or heavy balls. Ballistas were powered by torsion derived from two thick skeins of twisted cords through which were thrust two separate arms joined at their ends by the cord that propelled the missile.

Are Ballistas still used today?

Ballistae in the Roman Empire Accounts by the finders, including technical manuals and journals, are used today by archaeologists to reconstruct these weapons.

Did Vikings use Greek fire?

With the Byzantine army and navy once again gone from the city, a fleet of 1,000 ships descended upon Constantinople only to be done in by 15 old dromons fitted with Greek Fire projectors that set the Viking ships ablaze.

Are catapults illegal?

A catapult is not an offensive weapon. A catapult has no legal limit to the power it can produce as well as taking pretty much any design and form.

What is better trebuchet or catapult?

Roughly speaking, a trebuchet has a few advantages over a catapult. First, it can handle heavier projectiles. A catapult’s maximum weight tops out at about 180 pounds; trebuchets top out at about 350. Second, compared with a torsion engine, it’s a fairly robust machine.

Are catapults legal in the UK?

A catapult has no legal limit to the power it can produce as well as taking pretty much any design and form. However, they can only be bought from a store or on-line retailer by persons over the age of 18.

How is a polybolos different from an ordinary ballista?

The polybolos would have differed from an ordinary ballista in that it had a wooden hopper magazine, capable of holding several dozen bolts, that was positioned over the mensa (the cradle that holds the bolt prior to firing). The mechanism is unique in that it is driven by a flat-link chain connected to a windlass.

What is the most accurate reconstruction of a polybolos?

A 19th century reconstruction of a polybolos by a German engineer by the name of Erwin Schramm, for example, was reported to have been so accurate that the second bolt fired from the weapon was able to hit its target, and in the process, split the first bolt. Schramm’s reconstruction of a polybolos, in the Saalburg, Germany.

How do you fire a polybolos?

With the drawstring pulled back and a bolt loaded on the mensa, the polybolos is ready to be fired. As the windlass is rotated further back to the very back end, the claws on the mensa meets another lug like the one that pushed the claws into catching the string.