CMU School of Drama


Monday, March 03, 2014

Why Engines Are Commonly Measured in Horsepower

gizmodo.com: We owe this unit of engine power measurement to Scottish engineer James Watt.
In the early 1780s, after making a vastly superior steam engine to the then classic Newcomen steam engine, Watt was looking for a way to market his invention, advertising the fact that his engine used about 75% less fuel than a similarly powered Newcomen, among many other improvements.

1 comment:

AeonX8 said...

This is an interesting article about a term I theoretically understand, but did not know much about how it originated. For instance, I did not know James Watt invented the measurement, or that he was a Scottish engineer. I feel like I should memorize “33,000 foot-pounds per minute for 1 horsepower.” I find it kind of amusing that Watt came up with this after a failed royalty scheme comparing his improved steam engine over the classic steam engine. I also did not know the classic engine was a Newcomen.