Hermanus Haga

Herman Haga (Oldeboorn, 24 January 1852 – Zeist, 11 September 1936) was a Dutch physicist.

[1] He received his PhD with thesis Over de absorptie van stralende warmte door waterdamp (On the absorption of radiant heat by water vapor)[2] under the direction of Pieter L. Rijke.

Haga and Wind interpreted a diffuse broadening of the X-rays emitted at the narrower end of the slit as a diffraction pattern.

[3][4] Haga was one of the founders of the Nederlandse Natuurkundige Vereniging (Dutch Physics Association).

In addition to Cornelis Harm Wind (1867–1911),[5] Haga's doctoral students include the crystallographer Pieter Terpstra (1886–1973)[6] and Ekko Oosterhuis (1886–1966), who was the second scientist to join the Philips Natuurkundig Laboratorium.