What unit of measurement should be used for specific reports? Whether printing out a check register or calculating square footage, using the correct team is essential. A size mistake can lead to ...

Meters, kilograms, degrees Celsius. To most Americans, these units of measurement are little more than funny inconveniences on trips abroad. To scientists, they’re the very standards that allow for ...

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If scientists had sacred objects, this would be one of them: a single, closely guarded 137-year-old cylinder of metal, housed in a vault outside of Paris. It is a prototype that precisely defines a ...

Many measurement systems were developed as civilisation evolved. The imperial system is nothing if not quirky. Readers may recall that a rod, pole or perch equals 5½ yards or 16½ feet, with 40 rods to ...