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
Had Enough (The Who song) Enough" was the third John Entwistle composition that had Roger Daltrey on lead vocals, after "Someone's Coming" from 1967, and "Success Story" from 1975. Entwistle said of the song's composition: Unusually for a Who song, it features a full string orchestra, which was arranged by Ted Astley. Pete Townshend said of these strings: Roger Daltrey, however, did not approve of these strings, reportedly head-butting producer Glyn Johns over the disagreement. He later said: Had Enough (The Who song) "Had Enough" is a song written by The Who bassist John Entwistle, and featured on their eighth studio album, "Who Are You".