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What (who) is F(R) gravity - definition
F(R) gravity
THEORY OF GRAVITY WHOSE LAGRANGIAN IS SOME FUNCTION OF THE RICCI SCALAR R
F(R)-gravity; F(R) theory; F(r) gravity; F (R) gravity theories; F(R) gravity theories
() is a type of modified gravity theory which generalizes Einstein's general relativity. () gravity is actually a family of theories, each one defined by a different function, , of the Ricci scalar, .
Gravity gradiometry
MEASUREMENT OF VARIATIONS IN EARTH'S GRAVITATIONAL FIELD
Gravity gradient; Gravitational gradient; Gravity Gradiometry; Gravity gradiometer; Gravity gradient tensor
Gravity gradiometry is the study and measurement of variations (anomalies) in the Earth's gravity field. The gravity gradient tensor is the spatial rate of change of gravitational acceleration; as acceleration is a vector quantity, with magnitude and three-dimensional direction, the full gravity gradient is a 3x3 tensor.
gravity wave
.jpg?width=200 "Atmospheric gravity waves at Shark Bay, Western Australia, Australia seen from space in July 2006.")
WAVE GENERATED IN A FLUID MEDIUM OR AT THE INTERFACE BETWEEN TWO MEDIA WHEN THE FORCE OF GRAVITY OR BUOYANCY TRIES TO RESTORE EQUILIBRIUM
Gravity Wave; Atmospheric gravity wave; G-mode pulsation; Gravity waves; Surface gravity wave
¦ noun Physics
1. a hypothetical wave carrying gravitational energy.
2. a wave propagated on a liquid surface or in a fluid through the effects of gravity.
Wikipedia
F(R) gravity
() is a type of modified gravity theory which generalizes Einstein's general relativity. () gravity is actually a family of theories, each one defined by a different function, , of the Ricci scalar, .
