Examples from the Web for planck
Planck never called me 'fool,' not once, not in all our lives.
Never did from the time Verplanck, 'Planck he was called for short, was born.
It's a wonder he hasn't put the value of Planck's Constant on the classified list.The Mercenaries|Henry Beam Piper
A somewhat different procedure, in terms of entropy as fundamental, has been adopted and developed by Planck.
Once it was "July," then "soup kettle" and "Planck's constant."The Electronic Mind Reader|John Blaine
in physics, in reference to the work of German physicist Max Planck (1858-1947); e.g. Planck's constant, attested in English from 1901.