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
Move Closer to Your World Publications, the Sellers theme and Action News format were distributed among the other stations it owned; stations other than WPVI continued to use that theme into the 1990s. In 1972, Triangle exited the television business and sold WPVI to Capital Cities Communications, who commissioned a more professional theme from Al Ham, an established session music composer and arranger with several other themes to his credit. The end result, "Move Closer to Your World," would be distributed across Capital Cities' stations along with a slightly modified version of WPVI's Action News format. Eventually, other stations outside the former Triangle stations and