Spencer Heath Archive

Item 1562

Carbon of a letter from Heath to John Chamberlain, Cheshire, Connecticut

November 18, 1955

Dear John:

     Here is that layman’s explanation of Planck’s quantum principle in terms of the quantum of energy and quantum of action as the basic operational element in all physical energy such as erg-seconds, horsepower-hours, kilowatt-hours and so forth, including the human life-year. I have tried to make it clear and explicit and believe I have done so even to minds far less perceptive than yours.

Cordially,

SH/m

Enc:  “Prefatory Note Concerning the Quantum, the Erg-second, the Horsepower-hour and the Life-year”