The mean value or score of a certain set of data is equal to the sum of all the values in the data set divided by the total number of values.A mean is the same as an average.ean. The mean value or score of a certain set of data is equal to the sum of all the values in the data set divided by the total number of values. A mean is the same as an average.
A: Between 1763 and 1775, James Watt invented a steam engine with an efficiency much greater than that of the other steam engines then in use. This new steam engine helped to power the Industrial Revolution.
It is a well known fallacy that the lead inventor of the steam engine, James Watt, was inspired by watching the power of steam lifting off a kettle lid. In all truth, Watt was truly inspired when working on a Newcomen engine at the University of Glasgow, where he attempted to repair the engine in May, 1765. It's necessary to look at the engine variations leading up to this point, to properly understand the development of the steam engine. Thomas Savery, an English inventor/engineer, developed a water pimp which utilized steam from a boiler to create its power.