Eduard Grüneisen (26 May 1877 – 5 April 1949) was a German

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate caus ...

and the co-eponym of

Mie–Grüneisen equation of state The Mie–Grüneisen equation of state is an equation of state that relates the pressure and volume of a solid at a given temperature.Roberts, J. K., & Miller, A. R. (1954). Heat and thermodynamics (Vol. 4). Interscience Publishers.Burshtein, A. I. ...

. Grüneisen was born in

Giebichenstein The Giebichenstein in Stöckse, Germany, is one of the largest erratic boulders of northern Germany. It is in a city called Landkreis Nienburg/Weser. It weighs around 330 tons. A picture of the Giebichenstein is part of the emblem of the Stöck ...

, near

Halle (Saale) Halle (Saale), or simply Halle (; from the 15th to the 17th century: ''Hall in Sachsen''; until the beginning of the 20th century: ''Halle an der Saale'' ; from 1965 to 1995: ''Halle/Saale'') is the largest city of the Germany, German States of ...

. The Grüneisen parameter was named after him. Since 1929 he was together with

Max Planck Max Karl Ernst Ludwig Planck (, ; 23 April 1858 – 4 October 1947) was a German theoretical physicist whose discovery of energy quanta won him the Nobel Prize in Physics in 1918. Planck made many substantial contributions to theoretical p ...

editor of ''

Annalen der Physik ''Annalen der Physik'' (English: ''Annals of Physics'') is one of the oldest scientific journals on physics; it has been published since 1799. The journal publishes original, peer-reviewed papers on experimental, theoretical, applied, and mathe ...

''. In 1933 Grüneisen signed the ''

Vow of allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialistic State Bekenntnis der Professoren an den Universitäten und Hochschulen zu Adolf Hitler und dem nationalsozialistischen Staat officially translated into English as the Vow of allegiance of the Professors of the German Universities and High-Schools to Ad ...

''. Grüneisen died in

Marburg Marburg ( or ) is a university town in the German federal state (''Bundesland'') of Hesse, capital of the Marburg-Biedenkopf district (''Landkreis''). The town area spreads along the valley of the river Lahn and has a population of approximate ...

, West Germany.

References

1877 births 1949 deaths 20th-century German physicists {{Germany-physicist-stub