Why does the USA work off a fahrenheit scale and Canada works off celsius?

We use Fahrenheit because the US still uses the old British System of measurement, and can't afford or is just too lazy to convert everything if Congress did change it to the Metric System. ========== Here's the article on our history with the Metric System: <a rel="nofollow" href="http://members.cox.net/mathmistakes/metrics.htm">http://members.cox.net/mathmistakes/metrics.htm</a> America's Aversion to the Metric System Marge: Now, I know you haven't liked some of my past suggestions, like switching to the metric system -- Abe: The metric system is the tool of the devil! My car gets forty rods to the hogshead and that's the way I likes it. - The Simpsons episode "A Star is Burns" The anniversary went unnoticed, in this country anyways, but 2000 marked the 200th anniversary of the metric system, a system still not widely adopted by the United States. Ironically, the US was almost the second country to adopt the measuring system, now we are the last. The metric system was first ...  more