Compound lever the force of pushing back the stick to the levers and they rub against the wheels, using friction to slow and eventually stop the train. These are everyday applications of this mechanism. A piano key is a compound lever of the first-class, since the fulcrum is between the weight to be moved and the power. The purpose of this lever is to translate a small movement (depression of the key) into a larger and fast movement of the hammer on the strings. The quality of the resulting tone depends on whether the final speed is brought about by gradual or
Lawrence Lever Lawrence Lever Lawrence Lever is a journalist and entrepreneur, best known for his work investigating The Barlow Clowes Affair. Lawrence Lever was educated at Manchester Grammar School, and went on to study Law at Brasenose College in Oxford University. After earning his degree, he decided not to pursue law, but instead chose a career in journalism. Lever joined The Times in 1985 although he originally began his career as a trained and qualified solicitor. In the 1990s he changed his career towards journalism. Lever was notable for his work in the publication of an investigative journalism piece about Barlow Clowes.