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
The House That Had Enough take better care of them. 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