Dear Crabby, Why Hasn't the U.S. Switched to the Metric System? Thanks, Graham Stone Dear Graham, Well, we kind of have made the switch ... sort of. We've been inching our into the metric system for a long time. Basically, we started with it ... at least with our money. Thomas Jefferson was given the task of deciding what weights and measurements our new country would use. America was the first nation to use a fully decimal form of measurement for currency - our dollar is … [Read more...]