Theories
Planck's Law
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Planck's law describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium, and its derivation marked the origin of quantum theory.
Facts
Proposed YearSourced to the subject's own account Proposed BySourced to the subject's own account Cross-Tradition Connections
Sources
1. Planck's Law (Wikipedia)
WikipediaLead section (entity-description)Quote, Lead section (entity-description)
Planck's law describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium at a given temperature.
1. Planck's Law (Wikipedia)
WikipediaLead section (proposed-year)Quote, Lead section (proposed-year)
Max Planck derived the law in 1900 by proposing that energy is emitted or absorbed in discrete packets, or quanta.
1. Planck's Law (Wikipedia)
WikipediaLead section (proposed-by)Quote, Lead section (proposed-by)
Max Planck derived the law in 1900 by proposing that energy is emitted or absorbed in discrete packets, or quanta.
1. Planck's Law (Wikipedia)
WikipediaProposed By: Max Planck, History, Finding the empirical law section (edge: proposed-by, Planck)Quote, Proposed By: Max Planck, History, Finding the empirical law section (edge: proposed-by, Planck)
In 1900, German physicist Max Planck heuristically derived a formula for the observed spectrum by assuming that a hypothetical electrically charged oscillator in a cavity that contained black-body radiation could only change its energy in a minimal increment.
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