H ave you ever noticed that systems of measurement tends to change when you leave the United States? Weight is typically ...

This was such a major problem that in 1790, President George Washington said in his first State of the Union address that “uniformity in the currency, weights and measures of the United States is an ...

In 1866, the Congress and President approved legislation making the metric system legal but not mandatory in the United States. New metric standards were prepared for the states. Educators developed ...

The US hasn't fully adopted the metric system but "Unstoppable" author Bill Nye says some of the measurement is "creeping in." Here is his theory on why we haven't made the switch. Produced by ...