Power vs couples - Explained
Alexandra Wyman WireImage two high-powered Dodge Challenger in line at the drag strip See more pictures of sports cars.
There are chances that you have heard of horses Just about every car ad on TV talk, people talk about their Bandy cars word and even most mowers have a large sticker on them for you say the nominal power.
But what is power, and what does the average power rating in terms of performance In this article you will learn exactly what power is and how you can apply it to your everyday life.
The long-term power was invented by the engineer James Watt Watt lived 1736-1819 and is most famous for his work on improving the performance of steam engines also reminds us of it every day when talking about 60-watt bulbs.
The story goes that Watt was working with ponies lifting coal at a coal mine, and he wanted a way to talk about the power available from one of these animals, it was found that, on average, a mine pony could work 22,000 foot-pounds in one minute, then he increased that number to 50 percent and pegged the horsepower measuring 33,000 foot-pounds of work in one minute is that arbitrary unit of measure that was its way through the centuries and now appears on your car, your lawn mower, your chain saw and even in some cases your vacuum cleaner.
This means that power is that in the judgment of Watt, a horse can do 33,000 labor foot-pounds per minute So, imagine a horse raising coal out of a coal mine as shown above A horse exerting power may increase by 330 pounds of coal 100 feet in a minute, or 33 pounds of coal 1,000 feet in one minute, or 1,000 pounds 33 feet in one minute you can do until the combination of feet and pounds you love the product is 33,000 foot pounds in one minute, you have power.
В YВ ou can probably imagine that you would not load 33,000 pounds of coal in the bucket and ask the horse to move one foot in a minute because the horse could not move so much load You can probably imagine that you would want to put 1 pound of coal in the bucket and ask the horse to run 33,000 feet in a minute, because this translates into 375 miles per hour and horses can t run as fast However, if you have read How a Works hoist you know that with a pulley system, you can easily trade weight viewed remotely using a pulley arrangement you can create a hoist that puts a comfortable amount of weight on the horse at a comfortable speed, no matter how weight is actually in the bucket.
Horsepower can be converted to other units, for example.
1 horsepower is equivalent to 746 watts So if you took a horse 1 horse and put on a treadmill, it could operate a generator producing 746 watts continuous.
1 horsepower in one hour is equivalent to 2545 BTU British thermal units If you took that 746 watts and executed by an electric heater for an hour, it would produce 2,545 BTU where BTU is the amount of energy required to raise the temperature of one pound of water by one degree F.
One BTU equals 1,055 joules, or 252 grams-calorie or 0252 calorie food Presumably, a horse producing power burn 641 calories in an hour if it were 100 percent effective.
In this article you will learn about power and what it means in reference to machines.
How Horsepower HowStuffWorks, horses, work horse bucket coal, coal coal mine.