The Power of Horses

Horses are used as the main line of transportation since ancient eras.

In the 1800s an engineer named James Watt invented the term horsepower to relate performance in a mathematical way to equate horses to engine power.

But horses are not only used to measure engine performances.

The early Roman chariots have wheel track of 4 feet and 8.5 inches which is the size of 2 horses standing side by side and measured at the horses backside.



The English have since used that dimensions to space and lay the distance between the 2 rail tracks.

So there you are, the influence of horses and their useful backside.