micrometre

SI unit of length equal to one millionth of a metre or 1/1000th of a millimetre

Discussed in 1 episode Wikidata (Q175821) →

Episodes

#5321: From Millimeters to Atoms: The Units of Small

A millimeter is the last unit you can feel. Below it, the trades borrow microns, mils, and angstroms — and the atom is a different regime entirely.

Main topic Sep 18