Research Paper On Catapults

A catapult has been used all throughout history as a siege engine. A siege engine is a device that is designed to break or circumvent city walls and other fortifications in siege warfare. A catapult was one of the approximately 10 weapons used in siege warfare during an assault on a castle or fortification. Some other weapons used in both ancient and medieval siege warfare included the well known trebuchet, the classic battering ram, and the siege tower. All of these devices and their relatives were used both in ancient and medieval times in large numbers, and to their users utter enjoyment, and they remained effective for ages, despite an opponent's usually inefficient ways of trying to impede the seige weapons

The catapult is a machine that launches an object into the air by using sudden tension. When people launched catapults, the object that was launched forms a parabola to hit the target otherwise known as a projectile. There are forces that act upon the object such as gravity and initial velocity. To calculate where the object lands, people use the vertex form and the quadratic formula. The vertex form is y = a(x – h)2 + k in which a is equal to the slope of the parabola, h is equal to half of the x value and k is equal to the y value of the maximum point. Also, people can find the farthest distance where an object could land by using the quadratic formula. Therefore, vertex form and quadratic formula are used to determine the path of the catapult’s

Science Buddies. (2015, December 12). Effect of Trebuchet Arm Length or Counterweight Mass on Projectile Distance. Retrieved March 24, 2016, from http://www.sciencebuddies.org/science-fair-projects/project_ideas/ApMech_p013.shtml

[FONT=Times New Roman]This is your final examination for Assault Rifle permit in SAST. You need to answer 4 questions out of 5 correct to pass the test. If you fail to pass the test, you'll recive 3 days suspension from re-taking the test, after 3 days you may re-take the trainings and examination. Once you've sent the test, you'll recive a response from us within 48 hours, with the amount of points and if you passed it or not. If you did, you have premission to use any type of Assault rifle while patrolling. Good Luck![/FONT]

The trebuchet doesn’t date back to a specific person, or date. However it is seen as early as the 6th century. In the 6th century, China used a trebuchet-like idea of humans pulling ropes on one end to catapult an object on the other end. The known trebuchet design was created somewhere during the 12th period, and once created it was seen everywhere. The trebuchet was built during this medieval time period because it was extremely difficult to get over castle walls, or to break through. The purpose of the trebuchet initially was to do this. There are four basic parts to the trebuchet: the frame, the guide chute, the beam sling, and the counterweight. The trebuchet was created in a crucial time period because of its purpose. It succeeded greatly

The first records of counterweight trebuchets began appearing in the 12th century. Proving to be an excellent siege weapon, many militaries began using this. Though stone-throwing artillery had been employed by both the Greeks and Romans, they were usually powered by torsion or tension; the trebuchet was the first war machine to use gravity and leverage to fire projectiles. They were used widely during the Crusades, in which the European militaries, especially the French, used the trebuchet to lay siege to Muslim cities in the hopes of capturing the “holy land.”

Zac became ill as the building phase began, leaving me to do my best without him. At first, it was difficult, but building became much smoother as time went on. Time was not on our side, but we cranked it out and got the job done. I crafted the majority of the machine, including the simple machines in them. The spiral, mousetrap, gear, tubing, car, zip ties, cardboard, wood, pegboard, dowel rods, and hot glue were all provided by me.

When dreams turn to nightmares, most individuals have sights of monsters hiding underneath their bed or a scene of themselves between lowered into a vat of garter snakes. However war-stricken victims nightmares become a tangible reality with the use of napalm. Since World War II, the use of napalm has not only taken the lives of innocent bystanders but expanded the limitless boundary of the brutality of war and unlike chemical weapons. Without an enforced world wide ban, the expansion of this inhuman substance will continue to capture the lives of innocent civilians.

A Man in his mid-30s was found dead at the bottom of a mineshaft with a gunshot wound. The man was found at 2:45 pm on October 20th 1990 after a women reported about witnessing the murder. The mine shack was located near Parry Sound Street. The man was depicted as blue eyes, blonde hair and a birth mark near his right ear. He wore a white t-shirt and black jeans with branded running shoes. He was found dead on his stomach with a small gun wound on his back chest.

Have you ever been on a carnival ride that makes you want to barf at the mere sight of it? One that you would never go on willingly unless you were dared to? I have, and it was not fun.

Staring at the map and planning his next course of action, Nightburn had called a meeting of all his high-ranking officers, Sir Faine, Lady Sara, General Zhousbek, Ject, Ace, his assassination squad and personal bodyguards. His officers trailed into the room over the next few minutes with a group gathered near the door engaged in idle conversation, but all grew quiet when Nightburn directed his question to Ject. “Is everyone here?”

One of the most deadly bombs during the Vietnam War would be identified as Napalm. If, you were a veteran and seen it action, then you would agree. A lot of people may not know what the purpose was for this one bomb.

Gun shots, bomb explosions. Ten people dead, a hundred people critically injured. Sadly, this is something we hear about almost all the time. The perpetrator may be dead or alive, however, the lives of those lost will never come back. Why do these things happen? Why do people have to unnecessarily die? But on top of that, why do we all feel the need to know why these things happen, even though sometimes they don’t directly impact us?

When you begin looking at metal carports, you will instantly find out how easy it can be to use this type of building on your property.

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