Arbalest

     This piece of machinery is called the Arbalest. It is also known as a Ballista. This weapon looks like a crossbow, works like a crossbow only its 10 times bigger than the usual crossbow. This weapon loads javelin weighing up to 10 pounds. Because of its huge in size, the Ballista could not be pulled by hand. The string is pulled by a simple wheel mechanism that reduces the force used to pull the strings. Ballista was also invented wagon mounted. This made the Ballista become easier to move around when attacking. The Ballista is considered as a siege weapon because of the destruction it could cause to buildings.