human
Can you explain what the metric system is?
assistant
The metric system is a system of measurement that uses decimal units, such as centimeters and kilograms. It was developed in France in the 18th century. It is based on the idea that all measurements should be consistent with each other, so that different units can be used to measure the same things. For example, a meter is equal to 100 centimeters, and a liter is equal to 1,000 milliliters.