The arrest of Representative Trey Radel (R-Fla.) for purchasing 3.5 grams of cocaine brings to mind one of the longstanding puzzles of American commerce. How is it that cocaine is sold by metric units ...

Units from the metric system can be used to describe the mass, volume or length of an object. Mass is measured in grams (g) and kilograms (kg). Volume is measured in millilitres (ml) and litres (l).

Thirty years ago today the metric system was introduced into New Zealand says Consumer Affairs Minister Judith Tizard. The Weights and Measures Amendment Act became law on the 14 December 1976. "It ...

It is 200 years since Napoleon backtracked on his grand scheme to make his empire metric, but today the British remain unique in Europe by holding onto imperial weights and measures. With the UK's ...