Max Karl Ernst Ludwig Planck was a German theoretical physicist. Planck made many contributions to theoretical physics, primarily in his role as the originator of quantum theory and one of the founders of modern physics, which revolutionized understanding of atomic and subatomic processes. He is known for the Planck constant, , which is of foundational importance for quantum physics, and which he used to derive a set of units, now called Planck units, expressed in terms of physical constants. The Planck relation, E= ν, states that the energy of a photon is proportional to its frequency.
Max Planck, German physicist and academic, Nobel Prize laureate (born 1858)
On October 4, in the year 1947, Max Planck, German physicist and academic, Nobel Prize laureate (born 1858). This event is recorded as a Notable Deaths event in the history of October 4, one of 409 recorded events on this date across all of history.
1 notable person is associated with this event, including Max Planck. Learn more below.
Key Facts
- This event took place on October 4, 1947 (AD era).
- It is categorised as a Notable Deaths event in recorded history.
- Referenced in 2 Wikipedia articles.
- 1 notable person is recorded as involved in or associated with this event.
- Wikipedia source last updated on 28 September 2026.
On This Date in History 409
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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