Discover What You Need to Know About Horsepower
It is the marketing of a newly-improved steam engine that gave us the terminology horsepower. In a bid to convince coal mine owners still using the draft horses to adopt his improved technology, James Watt had to come up with a means of comparing the two. He had to attempt to determine the quantity of energy expended by a draft horse in a minute and compare it with the new engine.
James Watt determined that a draft horse does 33,000 foot-pounds of work in a minute. In modern times, however, the unit horsepower is used to determine the amount…