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Notes about trebuchet
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The History of a Trebuchet The name of the Trebuchet is ironic, being a French originated word, when this mechanical weapon was first invented in 300 BC, China (Alchin, “Trebuchet”). However, the machine that the Chinese used in the beginning, did not resemble the modern-day Trebuchet, and worked more like a sling. Sadly, this Trebuchet did not have the wished for results by the Chinese. Consequently, this weapon went through changes before it came to be the Medieval Weapon we think of today, the weapon that “overthrew” it’s two predecessors the catapult and ballista (“The Trebuchet”). After the Chinese made the sling like Trebuchet, the lever Trebuchet was made. This version of the Trebuchet was man operated. This machine was also created by the machine and was called the Traction Trebuchet. It fired when a group of men pulled on ropes that were attached to a lever on the machine, which launched the payload. Nevertheless, this man-operated machine, was put through a change again, since the Traction Trebuchet only had a range of 30-61 m and could only throw weights around 110 kg (“Trebuchet”). The final change to the Trebuchet, which occurred in the 12th century, became the modern-day Trebuchet and the first official counterweight …show more content…
version of this weaponized machine (“The History of a Trebuchet”). This final Trebuchet, was made strong enough and threw hard enough that it could break down castle walls. This was an important ability for this weapon to have, since the Trebuchet was most commonly used during the Medieval Era when thick stone walls of castles stood in the way of attacking enemies. The Medieval Trebuchet, the one that many people picture when hearing the word Trebuchet, was a huge, strong machine that could shoot out several projectiles when in battle. For example, most people associate the Trebuchet with launching large stones. However, these machines were used to shoot several things upon one’s enemy in battle, like; Greek fire, wooden poles, burning tar, dead animals, body parts, and even dead bodies, over and through the great stone fortresses that were built during the Medieval Times. Furthermore, the operators of the Trebuchet were called Gynours, per ancientfortresses.org. These men, Gynours, were required to build the Trebuchet on the site of the battle, this is due to the gigantic sizes that Trebuchets were built in. Additionally, another interesting fact that the website, ancientfortresses.org, mentioned was, when Trebuchet operators used this dangerous and fear-striking weapon to “shower their women with roses”. This occurred when Gynours, filled the sling part of the Trebuchet with flowers and shot them out at the woman they were trying to woo. Though this was not common, this was an interesting fact that this source had shared. As a result of all of the stories, uses, and changes, the history of the Trebuchet is interesting, and utilizes a lot of trial and error as some forms of the weapon were found more effective than others.
Similarly, due to all the changes of the machines and people throughout the years using false names to describe machines (due to lack of understanding) the history of the Trebuchet can be hard to follow. This is why, to some people, the first accepted version of the Trebuchet is the one made in the 12th century. People have this belief because, the machine made in the 12th century is the first version of the Trebuchet to use a counterweight as its energy source (rather than a sling and/or a level manually pulled by
ropes). All in all, this magnificent machine, after changing throughout the years as people grew a greater understanding of Physics was finally replaced by even more powerful machines in battle, like gun powder and cannons which also replaced (by guns, planes, and tanks). Even though this weapon may be obsolete in battle, and hasn’t been used in over a century in an actual battle. The Trebuchet can teach us many things, whether it’s learning how the Mohist Chinese fought way back in approximately 300 BC (which was the Trebuchet). Or learning about what jobs soldiers in the Medieval times fought, or what they were up against; like being Gynours who operate and build this machine directly on the spot it was created, and having to break down thick stone walls and fortresses. Finally, the history of the Trebuchet can also teach us a lesson about how, when building the Trebuchet, we need to apply trial and error and see how changing different aspects of the machine can change the outcome of the Trebuchet.
Question 5: “Texts construct characters who represent the best qualities in human nature, as well as those who represent the worst.” Discuss how at least ONE character is constructed in a text you have read or viewed. (Sem 2, 2016)
At the time when humans were learning to use spears constructed out of sticks and stones and the
Earlier models just used a large weight on one end of a pivoting arm. The arm was pulled back the missile was placed and then let go.
The roots of the machine go back to at least the fifth century B.C. in China. In its most primitive form, it consisted of a pivoted beam with a sling at one end and ropes at the other. A stone would be placed in the sling and a team of men would haul the ropes, swinging the beam up into the air”1.
The earliest model was the trebuchet. It started by using a large weight on one end of a pivoting arm. The arm was pulled back the missile was placed and then let go. The weight went down, the arm went, and the missile launched. The later model gained its power from a tightly wound skein of rope, hair, and skin. the skeins were twisted incredibly tight and then had a wooden arm up to sixty feet long placed in between them. The arm was pulled back using pulleys and rope, the missile was placed in the wood cup and then the arm was released. The arm sprang to a 90 degree angle where it was stopped by a large padded piece of wood. The arm was then brought back down and fired again.
According to Chevedden et al., (2002) the Latin word for trebuchet was “ingenium” and those who designed, made and used them were called inginators. These early engineers kept modifying the trebuchet to increase the range and impact force. One of the improvements engineers made was varying the length of the sling ropes so the shot left the machine at a ? angle of 45 degrees to the vertical (shown in the figure above), which produces the longest trajectory (Chevedden et al.,
Lerner, Adrienne Wilmoth. “The Bow in Medieval Warfare.” Science and Its Times. Ed. Neil Schlager and Josh Lauer. Vol. 2: 700 to 1449. Detroit: Gale, 2001. 339-341. Gale Virtual Reference Library. Web. 26 Feb. 2014.
Trebuchets earned a reputation for being much more accurate and precise than their onager and catapult counterparts. Not only was this accuracy a benefit, but being based on rotational motion and leverage rather than torsion (spring power) and lacking in a throwing arm stop, the trebuchet proved a much safer alternative for the personnel operating it. Onagers and Mangonels would literally explode on occasion when the torsion proved too great or a crack developed in the throwing arm due to the rapid stops it experienced.
The Trebuchet was created by the Chinese in 300 BC and was known to be the most powerful of all the catapults. The Trebuchet was made of a long arm possibly up to 60 feet long, which balanced on a fulcrum, which was far from the center. A counterbalance, which is a heavy lead weight or a pivoting ballist box filled with earth, was attached to the short arm. A sling was attached to the end of the long arm and a rope was attached to the long arm, which was pulled down until the counterbalance reached its maximum height. The sling was loaded with projectiles as the rope was released and the counterbalance drops down. The potential energy is converted into kinetic energy and when the long arm is brought to an abrupt stop the projectile continue with the velocity produced by the kinetic energy
Though little remains of the tillers or prods of these early Roman crossbows, at least one nut has been found intact. This nut is cylindrical, with fingers cut into the top to hold a string, and a seer notch cut into the underside. It is center-bored for an axle. The cuts are more severe than on later examples, thus making the nut flatter than those found on more modern pieces. This artifact, with its easily recognizable geometry, proves the technical similarities between these and much later crossbows. One other artifact is a turned knob that is thought to be the handle end of the tiller. Depictions in column carvings and stone reliefs at Solignac France help confirm this speculation. These images show short, carbine-type tillers with lathe turned handles fitted with massive prods, often stylized in keeping with artistic representation of the period. These prods were not likely to be the severe recurves shown in these depictions. They were more probably simple wooden straight bows. It is likely that at least some of these were of simple composite construction, as the horn or horn and wood composite technology was kn...
Crossbows can vary a lot in design and construction. They range from 50 to 400 lbs. in draw weight. They can be very small hand held pistols or rifles, which can fire rapidly and accurately with pinpoint accuracy up to 60 yards and kill ranges up to 100 yards. The larger bows with 400lb. draw weights could have ranges of over 400 yards they could fire large arrows, rocks and other types of projectiles accurately while staying well out of range of most enemy fire. These bows were built of large beams and sat on wheels so that 2 men could change the position of the bow easily. These bows were very powerful but were also very slow in loading and firing. They had mechanical winches, which were hand cranked to draw the bowstring back. It took two men to run these bows called siege machines.
...e went into motion. Possible projectiles of the trebuchet were living prisoners, jugs of Greek fire, rocks, and animals. Another large weapon of siege was used primarily in storms, the battering ram. In its early stages, the ram was no more than a hefty beam with a mass of metal attached to the end. Men would hoist the cumbersome boom onto their shoulders and run into a wall or door as many times as needed until the surface under attack gave way. In the Middle Ages, it was developed into more of a machine, for the ram hung from the center of a tent under which the men operating the ram could hide. The ram could be swung like a pendulum much more easily than having to constantly run back and forth. Also, castle guards often poured hot oil or other things onto the ram and its engineers. The tent, which was on wheels, protected the men and the battering ram as well.
The trebuchet is used with a long wooden arm refreshed on a hinge point, which acted as a big level. A bullet was placed on one end and soldiers in this earlier form of the trebuchet pushed on slings devoted to the other end to fundamentals swing the arm around and throw the
“Volley Guns” (Chivers, 2010, p.26) or also known as “Organ Guns” (Ellis, 1975, p.10) were first attempts at increasing firepower by adding several barrels at the firing itself, rather than simply attempting to increase the rate of fire. “Gunsmiths had long ago learned to place barrels side by side on frames to create firearms capable of discharging projectiles in rapid succession. These unwieldy devices, or volley guns, were capable in theory of blasting a hole in a line of advancing soldiers” (Chivers, 2010, p.26). An example of such weapons can be seen on July 28, 1835 when Giuseppe Fieshi unleashed terror on King Louis-Phillipe in Paris, France. He fired his 25 barrel “volley gun”, killing 18 of the king's entourage and grazing the King's skull. The weapon was ineffective however. Four of the barrels failed and another four ruptured. Two other barrels had exploded inside, grievously wounding Giuseppe. (Chivers, 2010, p. 27)