Eotvos (unit)

The "Eötvös" (symbol: **E** or sometimes **eot**) is a unit of measurement that quantifies the vertical gradient of gravitational acceleration, particularly used in the field of geophysics and gravity surveys. It is named after Hungarian physicist Loránd Eötvös. 1 Eötvös is defined as a change in gravitational acceleration of 10^{-9} g over a distance of 1 centimeter.