A Dictionary of Units of Measurement: A nice collection. The magnificent world of “tetrads”, “farthingdales” and “lippies”. Did you know that “nox” was a unit of (low) illumination used in Germany during World War II to describe permitted levels of lighting during air raids? Or that we ought not need longer distance units than yottameters, because the radius of the observable universe is only about 200 of them? Perfect.

posted by johannes grenzfurthner at 1:04:04 PM