Block and tackle Block and tackle A block and tackle is a system of two or more pulleys with a rope or cable threaded between them, usually used to lift heavy loads. The pulleys are assembled together to form blocks and then blocks are paired so that one is fixed and one moves with the load. The rope is threaded through the pulleys to provide mechanical advantage that amplifies the force applied to the rope. Hero of Alexandria described cranes formed from assemblies of pulleys in the first century. Illustrated versions of Hero's "book on raising heavy weights" show early block and tackle
Rope-a-dope take punishment in the belly". Kalinsky told him: "Do what you do in a training session: Act like a dope on the ropes." Ali then replied: "So, you want me to be a rope-a-dope?" According to Angelo Dundee, Kalinsky told Ali: "Why don't you try something like that? Sort of a dope on the ropes, letting Foreman swing away but, like in the picture, hit nothing but air." The publicist John Condon popularized the phrase "rope-a-dope". The maneuver is most commonly associated with the match between Muhammad Ali and George Foreman, known as The Rumble in the Jungle. Foreman was