Horse (strip)
And that's how they came up with "horsepower."
Trust me. Don't look it up.
Comments (8)
Still no clear for me XD
From an article on energy: ' Although Watt may have "bent the truth" to make his engine more appealing, he was not lying. While it is true that the maximum output of a horse is around 15 horsepower, when you average the output of a horse over the course of a work day it ends up being around a horsepower. Watt defined this amount as "the amount of work required from a horse to pull 150 pounds out of a hole that was 220 feet deep". '
Ok, mildly more complicated than that, it seems. The 15 HP thing is *burst* output for "a few seconds", and the sustained activity rate a horse can output is actually pretty close to 1 HP. Also, the average-over-a-day thing is incorrect, the original horsepower was calculated by counting how many times a horse could turn a 12-foot-diameter mill wheel in an hour (144), and determining from the distance traveled in those 144 revolutions and the estimated pull strength to pull the wheel how much force the horse had exerted over that hour. I suspect the "averaged over a day" came instead from statements written that compared the output of the engine to the fact that one would need, for example, 10-12 horses in order to sustain a (mostly) continuous 2 horses worth of work, because you need to pace them, but the engine was in fact still only being compared to the 2 horses.
Wow. I always wondered about that. Hope somebody doesn't hook their car to a Chihuahua and expect a tow.
Well this is correct without being correct. Yes, a horse may have a peak of 14 horsepower for really a few seconds. A horse can pull 550lb in one meter in one second, or 735 watts, and so on. But when the interest in having steam and mechanical things going is working on a day. A horse will never keep 14hp a day long, in fact, a horse has 1hp on a working day. People wanted to know if horses were better or not than machines. So this machine will be able to have 30hp all day long while the horse will have 1hp all day long.
For those who are curious: https://energyeducation.ca/encyclopedia/Horsepower
Aw while I trust u..I still kind of want to look it up now..just b/c u said to not do that. ^_^'
"Mr. Washington says otherwise" is the best line to use when bribing someone. These days we'll have to have Mr. Franklin say otherwise though....