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The Eotvos-effect

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In later years Eötvös was also interested in gravitational fields measured in accelerated frame of references.

A German team carried out gravity measurements on a moving ship in the oceans and published their result. Eötvös studying their results noticed a systematic error: the ship moving eastwards recorded lower readings and higher readings while moving westwards. He recognised this difference as a consequence of inertial force in an accelerating frame of reference, that is the Coriolis force acts upon the objects on the rotating earth. Eötvös warned the geodesists who repeated the measurements. The results backed up his claims.   

Since then the technical literature has been referring to the effect as Eötvös-effect.

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