A trebuchet is a type of medieval siege engine used to hurl large stones or projectiles at enemy fortifications. It operates on a simple principle of leverage, using a long arm that swings down to launch its payload. This powerful machine could launch heavy objects over great distances, making it an effective tool in battles and sieges. Trebuchets were often used alongside other siege weapons like catapults and battering rams. They played a significant role in warfare during the Middle Ages, helping armies breach castle walls. Today, trebuchets are popular in educational settings and competitions, showcasing the principles of physics and engineering.