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 ...

Electrical or electronic quantities and units are crucial values to know in evaluating and describing the behavior, characteristics and physical properties of a circuit. This quiz can help you recall ...

Humans have a need to quantify things. And sometimes the usual measurements — feet, meters, grams — are not good enough. Or funny enough. Sometimes you need to express things in bananas, Helens, or ...

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 ...

Here’s a handy chart of the units of measure we use all the time for electronic quantities. Note that the unit itself is lower case, the person it is named for is, of course, cap/lower case, and the ...

If you’re from the US or are trying to understand American units of measure, there’s now an easier way to do that with Uniter. This is a new iPhone app that can convert measurements in real-time in ...