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
The House That Had Enough The House That Had Enough The House That Had Enough is a 1986 children's picture book written by P. E. King and illustrated by John O'Brien. It was published in the Big Little Golden Book series. One day nearly everything in Anne's house (except her pillow), her bed, clothes, toothbrush, refrigerator, toys, even the house itself, all came to life and told her they felt she wasn't taking good care of them and left. Finally, Anne, a young girl who appears to live by herself, convinces her house to talk her things into coming back on the promise that she