why was the SI unit of measure created? and why is the metric system better to use than english?

Question

why was the SI unit of measure created?























and why is the metric system better to use than english.

Answer 1

Standardization of International Scientific and Industrial Units has been an issue for millennia. The earliest standards were made to enforce honesty in the exchange of goods and services, as you can read in "The history of Standards" Paragraph 2.1 in the link below:
http://www.okstate.edu/ind-engr/step/WEBFILES/Papers/Global_Harm_body.htm#_Toc454876043
See also: http://en.wikipedia.org/wiki/SI
Harmonization of units became of growing importance as the world was becoming a "smaller" place.
King Louis XVI of France commisioned a group of scientists, who invented the Metric System.
The English or Imperial Units, also referred to as the foot-pound-second units, differ from the U.S. customary system, which was from 1700, before the independance of the United states. After the independance the English system had evolved further, as had the American system.
http://en.wikipedia.org/wiki/Comparison_of_the_Imperial_and_U.S._customary_systems
http://en.wikipedia.org/wiki/Imperial_unit
Also see:
http://www.census.gov/epcd/www/sichist.htm
http://en.wikipedia.org/wiki/Metrology

Answer 2

SI is part of the metric system. The idea of the metric system is to minimize conversion factors.

An example:
a container that is 1000 cubic inches is 4.329004329 gallons. And this is still an approximation.

1000 cubic centimeters is one liter exactly.

Most scientific calculations are simpler in SI than other measurement systems.
The English unit of power is horse power which is 550 foot pounds per second.
The SI for power is watt and is one newton meter per second.
As technology developed, the English units did not keep up. With electricity, volts are SI units. There is no such unit in the English system.

As far as I know NASA still insists on using English units. However this was responsible for a mishap when we did a joint venture with another country.

Answer 3

The Metric system uses a base of 10 which matches our counting system therefore much simpler.

We just need to make a metric system for time now.

Answer 4

it was created as a worldwide standard. scientists measured from the north geographic pole to the south and divided it up. that's how we got metres.

the old measurements such as foot and yard were not standarised since people actually used there body parts to measure these things back in the old days, and as you know, not many people will have the same sizes!