|Pierre Weiss electromagnetism|
Pierre Weiss derived a unit of magnetic field strength by comparing the magnetic properties of nickel and iron.
No theoretical argument
Theorists could not justify the Weiss magneton with their early quantum theory. Weiss’s idea of an elementary magnet originated with Walther Ritz, who said atoms might contain chains of tiny rods, some having no magnetization, and some acting as tiny bar magnets.
Units of the indefinite
I’ll explain everything in a moment. There’s no time for unnecessary uncertainty. Sufficient degrees of ineffable confidence will immediately set the matter to rest. If the shoe fits, then its size is right.