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Notes about trebuchet
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The word trebuchet originated in France, but contrary to the name, the early siege weapon actually originated in China. The original trebuchet was made in 300BC. The trebuchet was made as a way to attack over enemy walls or fire at large groups of enemies running at the user. The Chinese had a design in which good ol’ fashion man power was used instead of a counter weight. There weren't very many advancements in the Chinese trebuchet besides the use of different woods. This trebuchet tended to be the least accurate out of all of the other models. This model is known as the traction trebuchet. The next version that was put together was made during a time period known as ,”the dark ages” it was called this due to the lack of knowledge of that
First the energy of conservation. The setting of the trebuchet before firing is shown in Fig 1. A heavy counterweight of mass (M) (contained in a large bucket) on the end of the short arm of a sturdy beam was raised to some height while a smaller mass (m) (the projectile), was positioned on the end of the longer arm near or on the ground. In practice the projectile was usually placed in a leather sling attached to the end of the longer arm. However for simplicity, we shall ignore the sling and compensate for this omission by increasing the assumed length of the beam on the projectile’s side. The counterweight was then allowed to fall so that the longer arm swung upward, the sling following, and the projectile was ultimately thrown from its container at some point near the top of the arc. The far end of the sling was attached to the arm by a rope in such a way that the release occurred at a launching angle near the optimum value ( most likely by repeated trials) for the launch height. The launching position is shown in fig.2 where we have assumed that the projectile is released at the moment the entire beam is vertical. In the figures: (a)=height of the pivot, (b)= length of the short arm, (c)= length of the long arm, while (v) and (V) are the velocities of (m) and (M), respectively, at the moment of launching.
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.,
In the movie the trebuchets speed was so fast that it looked like a bullet. In reality there was no way that it could have gone that fast because trebuchets only shoot at the maximum of 60m/s, and a gun shoots a bullet at a maximum of 1500m/s. The boulder would need to be shot out of the trebuchet about 25x harder that it was. Also in the movie was the damage that the trebuchet was dealing in the battles. The damage of the trebuchet in the movie was it was able to knock down a stone wall in one blow. In real life it would take a lot of consistent blows to the exact same spot to knock down a stone
The idea of the trebuchet design relies on the principle that stored potential energy of the counterweight can be converted into kinetic energy of the projectile, launching it into the air. Having the counterweight pivot around a much shorter distance than the projectile end gives an advantage to the projectile end of the beam to reach a much higher linear velocity than the counterweight end of the beam. This is the principle mechanical advantage that allows the projectile to have a high launch velocity. The main goal is to maximize the ratio of the length of the arm to the distance in which the apple travels.
The trebuchet was the apex of non-explosive projectile-based siege weapons to predate the cannon. The trebuchet was one of many non-explosive projectile-based siege weapons developed over the preceding 2 millennia. The largest and most powerful "nuclear option" trebuchet was known as the Loup-de-Guerre, which was Anglicized as the War Wolf.
During the period after the fall of the Roman Empire in the West, Europe experienced a time known as the Dark Ages. During this time period, much of the knowledge that had been learned was lost. Political control was transferred to barbaric invaders, such as the Goths, Vandals, and Huns. These groups destroyed many buildings and artworks that had existed during the time of the Roman Empire. Most people were illiterate, and much of the previously learned knowledge was lost (“Dark Ages”). However, arts and knowledge still flourished in the East.
The trebuchet, following the catapult, the trebuchet was capable of launching 400 pound projectiles hundreds of feet. This engine of war was created for one purpose, lay siege to an enemy castle. Recent discoveries indicate that the first trebuchet could have been invented as early as 300 BCE in what is now China, this version is thought to have been a rope based trebuchet with groups of military men using upper body strength in order to lob the projectile. The trebuchet reached Europe approximately 700 years later in 400 CE and was used mostly by the French as opposed to the Anglo-Saxons (Trebuchet). This was when the rope pulled design was improved into the counterweight system.
The purpose of the projectile lab is to test the validity of the law of conservation of energy. The application of this law to our everyday lives is a surprisingly complicated process. Conservation of energy states that energy cannot be created or destroyed, but that it can be transferred from one form to another. Consider the projectile lab from document A that this essay is based upon. In an ideal experiment, the projectile is isolated from everything except the gravitational field. In this case, the only force acting on the particle is gravity and there are only two forms of energy that are of interest: the energy of the particle due to its motion (defined as kinetic
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
Archers weren’t the only badasses of the battlefield; other destructive weapons also created terror in the hearts of the enemy. Every city and castle feared the appearance of siege engines, especially the devastating counterweight trebuchet. This powerful gravity-driven engine could reduce a city’s walls to rubble. Infantry and cavalry alike feared the awesome pike formations of the Swiss and Landsknecht armies. Essentially a really long spear, the pike’s very simplicity provided a remarkable tactical versatility in many medieval battles.
The Greek Dionysius the Elder of Syracuse, was looking to develop a new type of weapon, invented the catapult about 400 BCE . After that, it became a major weapon in the war and remained until the Middle Ages. Catapults have been integral
information was very slow and there was not an easy access to knowledge as well as now
The final catapult was designed for maximum force and destruction and was commonly used to throw stones at castle walls. It is called the trebuchet and was created by the Chinese in 500 BC. It was introduced to Europe not long after it was invented. It included a long arm which could have been up to 60 ft long, that was balanced on a fulcrum that was far from the center. The short arm was attached to a counterbalance which was usually a heavy lead weight or a pivoting ballast box filled with earth, sand, or stones.
Catapults have been a major part of war for many countries for years. They have helped lengthen the firing distance for countries and have therefore allowed soldiers to stay further away from the opposing country. Catapults came about as attempts to put more power and range in crossbows. In 399 BC a Greek historian, Diodorus Siculus, was the first person to document a catapult with an arrow hand, also known as a ballista. The French were the first army to use catapults as a weapon.
The Dark Age was known as animation’s “Dark Age” because it was a tough time for animation. This happened because of the “advent of television.” Many people started questioning theaters why they had to pay to watch “cheaply made short animation films when they can go home and watch it on their TV for free.” Many studios such as Hanna-Barbera, Jay Ward Productions, and Filmation Studios were some of the many production industries making cheap short films for the cash. Eventually, theaters had to cut out short films, so they had hit