Mechanical advantage device Mechanical advantage device A simple machine that exhibits mechanical advantage is called a mechanical advantage device - e.g.: Consider lifting a weight with rope and pulleys. A rope looped through a pulley attached to a fixed spot, e.g. a barn roof rafter, and attached to the weight is called a "single pulley". It has a mechanical advantage (MA) = 1 (assuming frictionless bearings in the pulley), moving no mechanical advantage (or disadvantage) however advantageous the change in direction may be. A "single movable pulley" has an MA of 2 (assuming frictionless bearings in the pulley). Consider a pulley attached to
Rope-a-dope power of welterweight titlist Miguel Cotto in their November 2009 fight. Pacquiao followed the rope-a-dope with a knockdown. Nicolino Locche, Argentine boxer nicknamed "El Intocable" (The Untouchable), used this technique extensively throughout his career. He would get against the ropes and dodge nearly every single punch until his opponent would tire, then he would take him down with combinations. "Irish" Micky Ward utilized this strategy during many of the fights in the later part of his career. Ward would wait for his opponent to become fatigued and would hit with either a left hook to the body or any number