Catapults Essay

In response to the use of castles and fortresses, siege weapons were created. Siege weapons ranged from short range weapons such as the battering ram to longer range ones like the trebuchet or the ballista. The battering ram was usually a big shed with an armored roof and wheels to protect the men inside operating a thick beam with an iron head hung from the roof that was swung into enemy walls to bring them down. The siege tower, a wheeled tower filled with men that would be used to get over the walls, also saw its use during this time. The trebuchet was used for longer range, the missiles launched by the trebuchet ranged from using dead bodies of animals or people to spread disease, a primitive example of biological warfare, to using large boulders to take down fortress walls. In response

To fire it, the spoke or arm was forced down, against the tension of twisted ropes or other springs, by a windlass, and then suddenly released. As the sling swung outwards, one end would release, as with a staff-sling, and the projectile would be hurled forward. The arm would then be caught by a padded beam or bed, when it could be winched back again. The Onager is usually the first type of catapult

The way a Trebuchet works is that a counter weight drops which pulls the arm forward and at the point of takeoff a pin releases the object that is being projected. The counterweight drops using gravity and is attached to the arm causing it to fly up and launch the object. Engineers have had previous experience in this field because of the world wide trebuchet launching competitions. One example of engineers making this trebuchet are the engineers from team NASAW in the Pumpkin Chunkin ' competition. Team NASAW has a trebuchet with a heavy weight and a long arm. There arm and weight start next to each other at the beginning. The weight drops forward and like a whip the arm swings around and fires the pumpkin into the air at insane speeds. They are one of the top competitors in the competition and have proven countless times that the design works wonderfully.

This book is written by Gary Paulsen. It takes place in the Canadian wilderness, where Brian Robeson’s, who is 13 yrs. Old, plane crashes. Brian shows a lot of determination and strength, to be able to survive in the wilderness, with no one else.

They were pretty late invention but the bow and arrow was an ultimate stone age weapon, in some parts of the world they have only been in use for 30,000 years or so. This weapon needed a number of inventions to occur before it could be finalized. First of all they needed very strong tine or string, they needed a sharp stone tool to shape the bow and the arrow and the possession to split very sharp, fine stone for the arrow tips. The skill to capture or kill prey from a distance gave our stone age man a huge advantage.

Trebuchets are most commonly known as medieval weapons used in the Middle Ages. Us three were to build a smaller scale of the trebuchet and had to make sure it hit the target two out of the five times. We had to build a hinged-counter weight type of trebuchet with wheels that could throw a ping pong or golf ball. Through the paper I will explain the history throughout trebuchets and why to have wheels and to have a hinged counter weight on the trebuchet. Also the calculations on the potential energy and velocity are through this report. Our trebuchet met all of the requirements that were to be made and it hit the target three out of the five times. This report will

Humans have used weapons in warfare, hunting, law enforcement, and criminal activity for thousands of years. Weapons also serve many other purposes in society including use in sports, collections for display, and historical displays and demonstrations. As technology has developed throughout history, weapons have changed with it.

There are 3 Laws of Motion developed by Isaac Newton in 1687, in his book “Mathematics Principles of National Philosophy”(Hall,Nancy).Newtons first law of motion says that an object will stay at rest until a external force is applied. Also know as inertia(Hall, Nancy). Gravity affects it buy pulling the counter weight down which pulls the the opposite side which has the sling and projectile up launching the projectile(Saimre tanol). For gravity to be most effective the counter weight must be at least five times heavier than projectile(Saimre tanol). Centripetal force is a big factor in calculating trebuchet factors. the definition of centripetal force is a force that acts inwards on any object that rotates or moves along a curved path and is directed toward a center point(Centripetal force). In this case centripetal force is good. when the projectile is released centripetal force pulls it inwards which makes it go farther and be more accurate with out centripetal force the projectile would go straight up or straight down(Centripetal

The earliest trebuchets were ‘traction trebuchets’, which were developed in China in the 4th Century B.C.E. Traction trebuchets used human labor instead of a counterweight for power. The Chinese needed so much power for the trebuchet that they had up to 250 soldiers pulling on ropes to operate the machine. This machine could throw stones up to 100 meters, but was not very accurate, because of the inconsistency in using manpower.

Trebuchets were a big way of fighting in the 12th century. They got the kind of weapons they used right, they just did

It’s Saturday, October 1, 1932 at Wrigley Field in Chicago. It’s a bright and sunny day. It’s Game 3 of the World Series between the New York Yankees and the Chicago Cubs. And the grandstands are jam-packed with nearly 50,000 fans.

The discovery of gunpowder changed war from being fought with medieval weaponry and battle tactics to more modern day weapons and tactics because the gunpowder powered weapons are more deadly. Weapons that use gunpowder to launch projectiles have a greater range than melee weapons and are more powerful than bow and arrows. Also, cannons are more powerful and have a greater range and accuracy than catapults and they also can be reloaded faster than catapults. Gunpowder weapons changed war because they are stronger, more accurate, have a greater range and are able to be reloaded faster than medieval weaponry.

Target Corporation is an upscale discounter providing high quality, on-trend merchandise at attractive prices in a clean, spacious and guest friendly store. Target Corporation also operates their online business at Target.com . According to the company' history report Target began as Marshall Field & Co in 1881 then in 1902 George Dayton opened a Goodfellows in downtown Minneapolis. One year later they founded their first Dry Goods Store and in 1911 they became known as the Dayton Company. In 1962 they opened their first Target store selling discounted merchandise. In 1967, the Dayton Company had their first public offering of common stock, and then in 1969 they merged with J.L Hudson Company to become the

When we think of catapults we usually imagine them firing at castle walls during the medieval times, or standing in the background of a large army clashing with another in an action movie. However, catapults have a long and intricate history that twists and binds with our own, dating all the way back to 399 B.C. First documented by the Greek historian, Diodorus Siculus, in the form of an early design for the Ballista (type of catapult). Catapults were a staple for siege warfare all throughout history. The catapult was used by many different cultures, notably the Greeks, Roman, and Chinese in siege warfare; also

The next major improvement in weapons technology came from the Chinese civilization, the inventers of gun powder. Initially used for the purpose of demolition