
"Horsepower" was invented by engineer James Watt.
One horsepower unit ranges between 735.5 and 750 Watts (depending on whether the horsepower is mechanical, electrical, or metric)
Here’s how the story goes – Once upon a time when James Watt was working with ponies lifting coal at a coal mine, he wanted to have a form of measurement which would determine the power of the animal. Watt determined that a pony could do an average...