Lever a place to stand, and I shall move the Earth with it' is a remark of Archimedes who formally stated the correct mathematical principle of levers (quoted by Pappus of Alexandria). It is assumed that in ancient Egypt, constructors used the lever to move and uplift obelisks weighing more than 100 tons. A lever is a beam connected to ground by a hinge, or pivot, called a fulcrum. The ideal lever does not dissipate or store energy, which means there is no friction in the hinge or bending in the beam. In this case, the power into the lever equals
Hayley Lever his mother was dying of tuberculosis. During his twelve-month stay he staged several exhibitions, painted seascapes and taught. In 1906, upon returning to Europe, he married Aida Smith Gale in St. Ives' Parish Church. In 1908, Lever did a series of paintings called "Van Gogh's Hospital, Holland" expressing the profound influence he felt from that artist. In 1911, Ernest Lawson, an Impressionist painter, persuaded Lever to move to United States, saying he would have greater success there. Lever arrived in New York City in 1912 and painted views of the Hudson River, Times Square and Central Park. Upon discovering the