Compound lever Compound lever The compound lever is a simple machine operating on the premise that the resistance from one lever in a system of levers will act as power for the next, and thus the applied force will be amplified from one lever to the next (as long as the mechanical advantage for each lever is greater than one). Almost all scales use some sort of compound lever to work. Other examples include nail clippers and piano keys. A lever arm uses the fulcrum to lift the load using and intensifying an applied force. In practice, conditions may prevent the use
Harold Lever, Baron Lever of Manchester Harold Lever, Baron Lever of Manchester Norman Harold Lever, Baron Lever of Manchester, PC (15 January 1914 – 6 August 1995) was a British barrister and Labour Party politician. He was born in Manchester, the son of a textile merchant from Lithuania, he was educated at Manchester Grammar School and Manchester University. He was called to the Bar of the Middle Temple in 1935. During World War II he served in the Royal Air Force. His brother was Leslie Lever, Baron Lever. Lever was elected Member of Parliament for Manchester Exchange at the 1945 general election, then Manchester, Cheetham from