units of measurement

If you've ever worked on bikes or cars, you know how annoying it can be to work with both English/imperial and metric units at the same time; well, the same goes doubly with spacecraft, but NASA's theoretically modular and standards-adhering Constellation system is shaping up to be the odd one out in space, where the metric system rules.

Long before they were units of measurement, Curie, Fahrenheit, Ohm, and Watt were exceptional scientists.