The Horse Power

The horse power is a unit that is used to measure the power of engines and mottors. One unit of horsepower is equal to the power needed to lift 550 pounds one foot in one second. This unit has been widely replaced by the watt in scientific usage; one horsepower is equal to 745.7 watts.

Try to imagine a world without horses. A horse played a crucial role in the Revolutionary War: In 1775, Paul Revere galloped his horse through the night to alert American settlers that the British army was invading. Would the war have ended differently had Revere made his midnight ride on a cow instead?

According to some scientists, the fate of humankind was changed about 6,000 years ago in what is now Central Asia.
That is when some experts think humans first began to tame the wild horse.
The domestication of horses is a critical moment in history.

The term horse power was coined by James Watt, who invented a new type of steam engine in the eighteenth century, Watt found that the horse could do a certain amount of work per second; when he sold his steam engines, this measurement allowed him to estimates the worth of an engine in terms of the number of horses it would replace. Therefore, a six-horsepower engine was capable of replacing six horse.