author
Hendrik Anthony Kramers
1894–1952
A gifted Dutch physicist at the heart of early quantum theory, he helped shape how scientists understood light, atoms, and statistical physics. His career linked the great centers of European physics, from Leiden to Copenhagen, and his work remained influential long after his death in 1952.
1 Audiobook
The atom and the Bohr theory of its structure : an elementary presentation
by Helge Holst, Hendrik Anthony Kramers
About the author
Born in Rotterdam on December 17, 1894, Hendrik Anthony Kramers—often called Hans Kramers—studied at Leiden under Paul Ehrenfest before becoming Niels Bohr’s first scientific assistant in Copenhagen. He built a reputation as one of the key theoretical physicists of his generation, working on the interaction of radiation and matter and contributing to the fast-moving development of quantum mechanics.
Kramers is especially remembered for work on atomic spectra, dispersion theory, and statistical physics. Reference sources including Encyclopaedia Britannica note his role, with Ralph de Laer Kronig, in deriving the Kramers–Kronig relations, and they also credit him with an early prediction of what became known as the Raman effect. He later held professorships at Utrecht and then Leiden, where he remained an important figure in Dutch theoretical physics.
Although he is less widely known outside science than some of his contemporaries, Kramers was deeply connected to the formative years of modern physics and to many of its leading thinkers. He died in Oegstgeest, the Netherlands, on April 24, 1952, leaving behind a body of work that still appears in the language and methods of physics today.