Horsepower is the only common language in the automotive world, and the concept was introduced long before the invention of the automobile;As early as the 17th century, inventor Watt created horsepower as a unit of power in order to let everyone know how much worse his steam engine was compared to the horses in the brewery mill. While horsepower is still well defined: the amount of power required to lift a 550-pound object up 1 foot in 1 second, many people are still curious about the question of "how many horsepower does a horse have?" and recently a YouTuber started an interesting experiment to find out what he thinks.
If you can raise a 250kg object by 30 centimeters in 1 second is 1 horsepower, then how much horsepower can a horse actually generate?"Over the past 100 years, countless people have conducted these experiments, and of course the results have been very different depending on the horse and the way of testing.
Recently, the operator of the Donut Media channel on YouTube also wanted to solve this 250-year-old puzzle and came up with the idea of using a horsepower tester to measure it directly, but since horses don't walk on rollers, he turned to an engineering company in Los Angeles to convert a Honda Civic as a test tool.
His test principle is that the cables coiled in the engine room drivetrain are pulled by the horses to turn the rollers, and the engineers can calculate the energy losses to know the horse's net power output. The results of several trials have shown that the horse has 5The strength of 7hp is equivalent to 578ps or 425kw。In other words, it turns out that the real strength of a horse is much more than a horsepower.
The ideal science must be reproducibility, which is of course a fun experiment, but it also gives another interpretation to the horsepower numbers that usually only appear on book specifications.
This article ** from: Auto Online.