Compound lever sudden movement of the key. The earliest remaining writings regarding levers date from the 3rd century BC and were provided by Archimedes. ""Give me a place to stand, and I shall move the earth with a lever"" is a remark attributed to Archimedes, who formally stated the correct mathematical principle of levers (quoted by Pappus of Alexandria). The idea of the compound lever is attributed to the Birmingham inventor John Wyatt in 1743, when he designed a weighing machine that used four compound levers to transfer a load from a weighing platform to a central lever from which the weight
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