Switching to SI units would require a significant overhaul of systems, processes, and education. It would also be costly and time-consuming to implement globally. Additionally, there may be resistance from industries and individuals who are accustomed to using other units of measurement.
Lots of different ways. For example, the legal definition of the U.S. standard units (foot, gallon, pound, etc.) are in terms of SI units.
Force is measured in units of newtons (N) in the International System of Units (SI) or pounds (lb) in the US customary system.
Yes, although they may slip into the imperial units in their communications with ordinary folk.
Of all countries in the world that has an officially established system of measurement, only Burma/Myanmar, Liberia and the United States do not use the International System of Units (SI). The United States use Imperial units and U.S customary units. That is not to say that SI is not in use in the U.S. The customary units are nowadays defined from SI units. And the National Institute of Standards and Technology uses it. To answer your question: the metrication of the United States is gradual and there is no fixed date where you can say that the US adopted SI. http://en.wikipedia.org/wiki/Metrication_in_the_United_States
A system of measurements. SI is the most used world-wide now (Systeme Internationale). The old British system using feet and pounds is now largely superseded though it is still used in some more traditional industry, especially in the US.
To comply with the internationally accepted SI units.
Sort of. US measurements are now for the most part defined in terms of SI units. Also, a few SI units such as "seconds" are used directly.
Newton in SI Pounds in US Customery units system
Use a conversion factor
Lots of different ways. For example, the legal definition of the U.S. standard units (foot, gallon, pound, etc.) are in terms of SI units.
use a conversion factor.
The basic unit of time is the same in both the SI and US systems . . . the second.
Of all countries in the world that has an officially established system of measurement, only Burma/Myanmar, Liberia and the United States do not use the International System of Units (SI). The United States use Imperial units and U.S customary units. That is not to say that SI is not in use in the U.S. The customary units are nowadays defined from SI units. And the National Institute of Standards and Technology uses it. To answer your question: the metrication of the United States is gradual and there is no fixed date where you can say that the US adopted SI. http://en.wikipedia.org/wiki/Metrication_in_the_United_States
The SI unit is a Newton. The old US unit is the pound-force or the poundal.
SI is used worldwide. As scientists, many of their ideas are going to be shared with colleagues within the US and overseas. Therefore, it's easier to use SI in order to keep the conversions to a minimum.
Different SI unit help us to identify the thing of which the SI unit is. It also help others countrymen to know and so that they can cooperate with other countrymen
Use a conversion factor