it. Then it has a rope connected to a winch that pulls the arm back to 90 degrees. then‚ you put the projectile in the shovel‚ and cut/release the rope then the projectile flies. The third catapult is called the Trebuchet. It was designed for pure maximum force. The Trebuchet consists of a long arm on a fulcrum where a sling is also attached. The short arm was attached to a heavy lead
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The trebuchet is a large machine of the trebuchet family formerly used as a siege weapon and now for history reenactment‚ recreational or engineering purposes. It was formerly one of the most powerful weapons in history‚ being able to fire a projectile to a distance of up to three hundred yards accurately. It consists of a lever arm laid across a supporting crossbeam (the fulcrum)‚ a heavy counterweight on one end‚ and a sling on the other. The sling would hold the load (projectile) during battle
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Catapults According to Diodorus Siculus‚ the catapults were similar to arrow bows and were closely linked with each other in Greece. The catapults were used by a Greece task force in 399 B.C.‚ while in 397 B.C. the Catapult was used on mass scale against Motya in Sicily. According to some sources the history of catapults dates back to third century BC. during which it was invented as a hand-held crossbow‚ known as gastraphetes or belly shooter. Going deep into the history of catapults we come
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catapults history was in 12-th century France with the creation of the trebuchet. This massive engine was said to have struck fear in the hearts of their enemies. The design and its sheer power have launched this example catapult history through the centuries. The trebuchet used a long wooden arm rested on a pivot point‚ which acted as a large lever. A projectile was placed on one end and warriors in this earlier version of the trebuchet pulled on ropes attached to the other end to essentially swing the
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Computer Lab Rules & Regulations Electronic workstations may only be used by current Swinburne University students and staffs. Swinburne identity card must be presented on request. Swinburne computing facilities should only be used for educational‚ research and administrative purposes of Swinburne. All other uses are strictly prohibited. The following rules and terms apply to all computers on campus. Terms and Conditions 1. All users must abide by the license requirements of any software
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at a great speed. The key to make the object go further was to make the light weight and the twined ropes. The Trebuchet was first used by the Chinese in 300 BC. In the 1200’s it was used most by the French and made many improvements on the engine making it more accurate. The trebuchet comes from the Middle French verb trebuch‚ which means “to tumble” or “to fall over”. The Trebuchet was used to take down disable enemy’s siege engines and to terrorize towns and castles using large‚ heavy stones
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NATIONAL UNIVERSITY OF RWANDA FACULTY OF APPLIED SCIENCES DEPARTMENT OF COMPUTER SCIENCE BACC IV ACADEMIC YEAR: 2012-2013 CHAPTER 1. TOPIC: DESIGN AND IMPLEMENTATION OF AN ONLINE COMPUTER LABS MONITORING SYSTEM CASE STUDY: NATIONAL UNIVERSITY OF RWANDA ICT CENTER/Helpdesk Unit
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The trebuchet is made of five basic parts. The base‚ counterweight‚ throwing arm‚ sling‚ and pivot. The base gives the trebuchet a secure base to help with over rotation and other engineering problems that may occur. The counterweight falls and the force of gravity thrusts the projectile forwards. The throwing arm is used to connect the counterweight and sling‚ and is part of the thrust downwards.The sling holds the projectile and the pivot is there to prevent over-rotation. Trebuchets can be made
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Zac Jordan‚ Ryan Breaux Catapult Project Sharkey Catapults have been used since Greek and Roman times. They were used as siege engines against castles and walled cities. The ammunition loaded into the catapults were meant to break the walls with stones‚ fire incendiary missiles over the walls‚ or used for biological warfare‚ such as launching dead animals over the wall to spread disease. The type of catapult we built is a mangonel catapult. We like to call it RZYAACN (our names combined and
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Case Analysis Kaspersky Lab: From Russia with Anti-virus Industry Background: Software Security Cybercrime has become a fast growing concern for the 21st century as businesses‚ institutions and individuals grow into an interconnected web of computer networks. Online business transactions‚ along with the sharing of personal information‚ are vulnerable to a host of disasters that can reap economic and social havoc. Some sources say that today‚ cybercrime costs more than $1.0 trillion to society--Global
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