What is Horsepower?
The term horsepower was created by James Watt, who invented a new kind of steam motor in the eighteenth century. He used the term as a means to measure the power of his engine to that of the horses that worked in coal mines. He wanted to sell his engines to a customer base who were used to using real horses to perform their daily work.
Today, the term horsepower remains a unit of measurement to describe the power and capacity of an engine.