Articles
Practical guides for understanding units and making accurate conversions.
Measurement systems
Metric vs. Imperial: Why the US Still Uses Miles, Pounds, and Fahrenheit
Why most of the world measures in meters, kilograms, and Celsius, why the United States still uses miles, pounds, and Fahrenheit, and what the base units of the metric system actually are.
A Brief History of the Metric System
How the metric system was created during the French Revolution, how the definition of the meter evolved from a physical bar to a fixed physical constant, and how metric units became the global standard.