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
William Lever, 1st Viscount Leverhulme order to become profitable and although Lever could probably have solved its problem though placing orders for most of his soap, he clearly wanted complete control. Having persuaded his father and younger brother that it would be a beneficial strategy, William raised sufficient capital for the takeover to take place and in August 1885 Lever and Company, wholesale grocers, added soap manufacturing to its range of activities. The success of the Sunlight brand, especially after Lever assumed full responsibility for the product's quality, was exceptional; so much so that by the end of 1887 it had become impossible to squeeze