UPPERCASE - Metric System

Metric System

In the metric system of weights and measures, the same letter in upper case can have a different meaning to that letter in lower case.

  • 789 mm, a small measure
  • 789 Mm, a large measure
  • 41 l, litres written originally, where "one" and "elle" look rather alike.
  • 41 L, litres written later, where "one" and "capital L" look different.

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