Why Isn't the U.S. on the Metric System?

As the main body of the British Empire, American settlers inherited and used the British empire system developed from disarray of medieval weight and various measures. France developed and completed metrics throughout the latter half of the 18th century, but Britain and its American colonies still used an outdated measurement system.

It is not that American leaders do not want to control chaos. In the newly established Constitution of the United States of America, Article 1, paragraph 8 states that Congress should have the authority to "collect coins and determine measurement standards". In 1790, George Washington Secretary of State Secretary Thomas Jefferson did the first practical analysis of this article. Jefferson agrees with the decimal measurement system, but is reluctant to guide the country in that direction when proposing the basic principles of the metric system based on decimal notation. He is worried that the metric unit can not be verified unless the US dispatches an expensive delegation to France.

The changing political situation is useless. France supported American colonies during the revolutionary war, but France ratified the United States after the Jay Treaty was ratified in 1795. The French believe that this treaty abolishes the control of the position in the northwestern part of England and gives the United States limited trade rights. West Indies as a prosperous ally between the United States and the UK. France sent an individual targeting US merchant ships and retaliated. When John Adams became President in 1797, the hostility between America and France became very intense. Therefore it was not surprising that when the French invited foreign politicians to Paris in 1798 to understand the metric law it was excluded from the United States.

Even though American representatives visited Paris in 1798 and were surprised by the metric demonstration, they were unlikely to convince American leaders to change their country's measurement and measurement systems. In 1821, Secretary of State John Quincy Adams reviewed various measurement units used in 22 states, then determined that the customary systems in the United States were sufficiently unified and need not be changed. In addition, American politicians are afraid that efforts towards the French metric law, which Napoleon Bonaparte has been doomed over for years in the early 19th century, may be shaken.

Between 1970 and 1980, the strong movement to use metrics in the US lost momentum. Currently, in the United States, double measurement that combines metric and imperial pound law is used. Many large industries and several small industries are being converted to use by SI. However, Congress did not promote the development of legislation as the sole standard of the United States, primarily because there is no approval from American voters. However, as a measure of the most common language in most countries in the world, it is increasingly sought that foreign customers purchasing American products label with meters, so it is increasingly demanded in the United States It may be a measure of the country.

Most countries in the world use the metric system. The same is true for most international companies and international and domestic science communities including the United States. The transition to the full metric system in the US will make transferring goods, information and technology easier and easier. English system is used only in the United States. The ruins of the imperial system remain in the UK and its former colonies, but there is a confusing difference between the two. When people complete work, English measures develop naturally. These countermeasures are of a human scale and can be easily used once mastered. One pint of beer is easier to order than 500 ml and half pound is easier to think than 250 grams. Many English system countermeasures apply to the convenient score in everyday life