Lever a fixed point. The lever operates by applying forces at different distances from the fulcrum, or a pivot. Assuming the lever does not dissipate or store energy, the power into the lever must equal the power out of the lever. As the lever rotates around the fulcrum, points farther from this pivot move faster than points closer to the pivot. Therefore, a force applied to a point farther from the pivot must be less than the force located at a point closer in, because power is the product of force and velocity. If "a" and "b" are distances from the
Évelyne Lever specifically for an American audience. She continues to write on and about 18th-century history. French English Évelyne Lever Évelyne Lever (known simply in English as Evelyne Lever) is a contemporary French historian and writer. She was married to a French historian, Maurice Lever, who is the author of "Sade". Lever was previously a research engineer at CNRS, and then began to focus more on 18th-century history. In particular, she focuses on certain people, including Louis XVI, Marie Antoinette and Madame de Pompadour. "Marie Antoinette: The Last Queen of France" was her first book to be published in the United States.