Lever resistance (or load). It is common to call the input force "the effort" and the output force "the load" or "the resistance." This allows the identification of three classes of levers by the relative locations of the fulcrum, the resistance and the effort: These cases are described by the mnemonic "fre 123" where the fulcrum is in the middle for the 1st class lever, the "r"esistance is in the middle for the 2nd class lever, and the effort is in the middle for the 3rd class lever. The lever is a movable bar that pivots on a fulcrum attached to
Hayley Lever in line, form and color. If I were confined to my own back yard for the rest of my life, I'd still have more pictures in my mind than I would have time to paint. Art is nothing but having a good time." Lever went to Pittsburgh in 1922 as an art juror for the Carnegie International exhibition. In 1924, Lever was commissioned to paint a portrait of the presidential yacht, , which was subsequently presented to President Calvin Coolidge in the Cabinet Room of the White House. By 1930, Lever had moved to Caldwell, New Jersey, staying there until