Loránd Eötvös

Infobox Scientist
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birth_date = July 27, 1848
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death_date = April 8, 1919
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nationality = Hungarian
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field = physics
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known_for = gravity
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Baron Loránd von Eötvös, more commonly called Baron Roland von Eötvös in the English literature, [L. Bod, E. Fishbach,
G. Marx and Maria Náray-Ziegler: [http://www.kfki.hu/~tudtor/eotvos1/onehund.html One hundred years of the Eötvös experiment] , - Acta Physica Hungarica 69/3-4 (1991) 335-355] [IPA|ˈøtvøʃ] (in Hungarian Vásárosnaményi Báró Eötvös Loránd, or just Loránd Eötvös [IPA|ˈloraːnd ˈøtvøʃ] , July 27, 1848 - April 8, 1919) was a Hungarian physicist.

Eötvös is remembered today for his experimental work on gravity, in particular his study of the equivalence of gravitational and inertial mass (the so-called weak equivalence principle) and his study of the gravitational gradient on the Earth's surface.

The weak equivalence principle plays a prominent role in relativity theory and the Eötvös experiment was cited by Albert Einstein in his 1916 paper "The Foundation of the General Theory of Relativity".

Measurements of the gravitational gradient are important in applied geophysics, such as the location of petroleum deposits. The CGS unit for gravitational gradient is named the eotvos in his honor.

From 1886 until his death, Loránd Eötvös researched and taught in the University of Budapest, which in 1950 was renamed after him "(Eötvös Loránd University)".

ee also

* eotvos, a unit of gravitational gradient
* Eötvös experiment
* Eötvös effect, a concept in geodesy
* Eötvös number, a concept in fluid dynamics
* Eötvös (crater) on the moon
* Eötvös rule for predicting surface tension dependent on temperature

References

*Citation
id = PMID:4932574
url= http://www.ncbi.nlm.nih.gov/pubmed/4932574
last=Antall
first=J
publication-date=1971 May 9
year=1971
title= [The Pest School of Medicine and the health policy of the Centralists. On the centennary of the death of József Eötvös]
volume=112
issue=19
periodical=Orvosi hetilap
pages=1083-9

External links

* [http://www.mek.iif.hu/porta/szint/tarsad/tudtan/eotvos/html/stepcikk.html Eötvös and STEP] "(biographical remarks and a summary of his research)"
* [http://www.kfki.hu/~tudtor/eotvos1/onehund.html One hundred years of the Eötvös experiment] "(a technical review of his research)"
* [http://www.elgi.hu/cgi-bin/cnt_eng Eötvös Loránd Virtual Museum]