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[[Image:Max planck.jpg|right|thumb|150px|Max Planck]]

[[Image:Max planck.jpg|right|thumb|150px|Max Planck]]

'''Max Planck''' (1858-1947) was one of great [[Germany|German]] physicists.  He advanced the subject of [[thermodynamics]], [[thermoelectricity]], the theory of [[dilute solutions]], and was one of the founders of [[quantum mechanics]].

'''Max Planck''' (1858-1947) was a great [[Germany|German]] physicists.  He advanced the subjects of [[thermodynamics]], [[thermoelectricity]], and the theory of [[dilute solutions]], and was one of the founders of [[quantum mechanics]].

Planck's revolutionary discovery, one of the most influential in all of science, was that energy emitted by a resonator could on have discrete values or quanta.  The energy for a resonator of frequency '''''ν''''' is '''''hν''''', where "'''''h'''''" is a universal constant that is now called Planck's constant.  This theory explained discrepancies between theory and observations, and became known as quantum theory.  This helped lay a foundation for the future discovery of quantum mechanics.

Planck's revolutionary discovery, one of the most influential in all of science, was that a resonator could emit energy in discrete units, or quanta.  The energy emitted by a resonator of frequency '''''ν''''' is '''''hν''''', where "'''''h'''''" is a universal constant that is now called Planck's constant.  This explanation resolved important discrepancies between theory and observations, and helped lay a foundation for the development of quantum mechanics.

Planck was award the [[Nobel Prize]] for physics in 1918.<ref>The Earth and Its Peoples A Global History, Bulliet et al, 2005</ref>

Planck was award the [[Nobel Prize]] for physics in 1918.<ref>The Earth and Its Peoples A Global History, Bulliet et al, 2005</ref>