A physicist.[ref]
https://www.nobelprize.org/prizes/physics/1902/lorentz/biographical/. Biographical identity and professional specialization
The Lorentz force connects charged-particle motion to the electric field and magnetic field. His theoretical account of the Zeeman effect connects that motion to changes in emitted light.
Portrait of Hendrik Lorentz
. Photographer unidentified; Museum Boerhaave attribution is reported by the File via the Royal Library; reproduced through Frankfurt theoretical-physics image collection. Commons PD-old/life-plus-70 and pre-1931 US-publication claims; Museum Boerhaave publication-permission statement reported. These are jurisdiction-qualified claims., via Wikimedia Commons. Source.Hendrik Lorentz was a Dutch physicist who made significant contributions to theoretical physics in the late 19th and early 20th centuries. He is best known for his work on electromagnetism and his development of the Lorentz transformation, which describes how the measurements of time and space change for observers in different inertial frames of reference. This work was essential to the formulation of Einstein's theory of special relativity.
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