Planck Announces His Quantum Theory

At a glance:

Article abstract: Planck assumed that the energy of light was quantized proportional to its frequency, not the intensity, spawning the field of quantum mechanics.

Summary of Event

Toward the end of the nineteenth century, many physicists believed that all the principles of physics had been discovered and little remained to be done, except to improve experimental methods to determine known values to a greater degree of accuracy. This attitude was somewhat justified by the great advances in physics that had been made up to that time. Advances in theory and...

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