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Incoming links: Über die Konstitution des Elektrons by Walter Kaufmann (1906)
Walter Kaufmann (physicist) Created 2026-10-24 Updated 2026-11-05
Walter Kaufmann (physicist) measured electric and magnetic deflections of fast electrons to compare competing accounts of electron inertia. An electric field and a magnetic field constrain different combinations of electric charge, speed and momentum. Combining their deflections therefore probes the relation between motion and inertia. His 1906 report presents detailed apparatus and model comparisons; its historical preference among electron models should not be mistaken for a modern validation of that model.[ref]
Über die Konstitution des Elektrons by Walter Kaufmann (1906). 1906 original report, introductory model comparison and electric/magnetic deflection analysis
A physicist.[ref]
https://www.deutsche-biographie.de/gnd116193395.html. Biographical identity and professional specialization
Portrait of Walter Kaufmann (physicist)
. Walter Kaufmann (as credited on Commons); Niedersächsische Staats- und Universitätsbibliothek, Göttingen. Public domain (PD-old-75-expired / PD-Art / Public Domain Mark 1.0, as stated on Commons). Source usage terms, via Wikimedia Commons. Source.