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Electronics >> History of Electronics >> Albert Einstein


Albert Einstein (1879 - 1955)

In the year 1905, Einstein elaborated on the experimental results of Max Planck who noticed that electromagnetic energy seemed to be emitted from radiating objects in quantities that were discrete.

The energy of these emitted quantities- the so-called light-quanta- was directly proportional to the frequency of the radiation which was completely contrary to classical electromagnetic theory, based on Maxwell's equations and the laws of thermodynamics.

Einstein used Planck's quantum hypothesis to describe visible electromagnetic radiation, or light. According to Einstein's viewpoint, light could be imagined to consist of discrete bundles of radiation.

Albert Einstein
Albert Einstein


Einstein used this interpretation to explain the photoelectric effect, by which certain metals emit electrons when illuminated by light with a given frequency.

Einstein's theory, and his subsequent elaboration of it, formed the basis for much of Quantum Mechanics.

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