An inch is a commonly used customary unit of length in the United States, Canada and the United Kingdom. There are 36 inches in a yard and 12 inches in a foot.
Metric system emerged in the late nineteenth and early twentieth centuries the term is now often used as a synonym for the “International System of Units” – the official system of measurement in almost every country in the world. The United States is the only industrialized country that does not use the metric system as its official system of measurement, although the use of the metric system has been officially sanctioned for use there since 1866. How can you argue against Metric system which is Used in Engineering, Medicine, Rocket science and most of the world?
Check out this video and find out why inches are causing problems in American Chopper show.