Theodore Duarte Have Fun Storming the Castle: Which Type Of

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Theodore Duarte Have Fun Storming the Castle: Which Type of Catapult Can Hurl an Object the Farthest? A catapult is an ancient weapon of siege that stores potential energy and converts it to kinetic energy to fire a projectile. The potential energy is stored in the form of tension, torsion, traction, or gravity. Catapults were used for 1000’s of years before the invention of modern weaponry. Even today engineering students study and build catapults to learn about engineering and physics, and the Air Force uses catapults to fire planes off of aircraft carriers. This experiment will compare the three main types of catapults for their effectiveness at achieving distance. I designed and constructed all three of the main types of catapults: Ballista, Trebuchet, and Mangonel (Onager). I made them all out of the same materials, primarily 2”x2” wood, and of a similar scale. I adjusted all catapults so that they fired correctly and then hurled the same object, a tennis ball, from all three, and averaged and compared the results. My results did support my hypothesis. I predicted the trebuchet would hurl the object farthest and it did. It had an average distance of 10.27m, while the Mangonel had 2.65m and, the Ballista 2.80m average. Gravity in the form of a counterweight on the Trebuchet was more effective at converting potential energy into kinetic energy than torsion on the Mangonel and Ballista. Investigating further the relationship between the design and the forces produced is a possible topic for additional future study. .

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DIY Science Catapult
DIY Science Catapult How can making a catapult help you prove something that it took mankind millennia to work out? Look at the science behind siege engines in the DIY Catapult! Historical Overview On War Machines and Mangonels One of the problems with warfare throughout history was that enemies had the annoying habit of hiding behind fortifications. The solution: to find a way of beating down, piercing or otherwise destroying part of the wall so as to gain entry. Alternatively, it was equally important to be able to keep others intent on destroying your walls at bay. Enter the one- armed throwing engine. What’s a Mangonel? The Greeks c200 BC referred to these one-armed machines as among numerous devices that could be used by the defence against a besieger’s machinery. People from the Mediterranean to the China Sea developed war machines that operated using the elasticity of various materials. The term catapult is used to describe all of the different types of throwing machines. What you and I know as a catapult is actually a mangonel, otherwise known as an onager. Onager was the slang term derived from the Greek name for ‘wild donkey’. This referred to the way the machine ‘kicks’ when it’s fired. The correct term for the machine is mangonel - derived from the ancient Greek term “manganon” meaning “engine of war”. Historical Evidence There is very little archaeological or historical evidence on the mangonel. However, the Roman, Ammianus, does describe one in his writings, but the proportions of the machine are unknown. There remain some medieval illustrations of the machines and some speculative drawings from the 18th and 19th centuries.
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Maker Corner Activity
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The Influence of History on Modern Chinese Strategic Thinking
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Science Cycle 2 Week 22 Popsicle Stick Catapults by Robyn Cooper
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Mini Mangonel Nustem.Uk
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