The relative velocity between objects with finite velocity affects the reaction
between them. This effect is known as general Doppler effect. The Laser Interferometer
Gravitational-Wave Observatory (LIGO) discovered gravitational waves and found their
speed to be equal to the speed of light c. Gravitational waves are generated following
a disturbance in the gravitational field; they affect the gravitational force on an object.
Just as light waves are subject to the Doppler effect, so are gravitational waves. This
article explores the following research questions concerning gravitational waves: Is there
a linear relationship between gravity and velocity? Can the speed of a gravitational wave
represent the speed of the gravitational field (the speed of the action of the gravitational
field upon the object)? What is the speed of the gravitational field? What is the spatial
distribution of gravitational waves? Do gravitational waves caused by the revolution of
the Sun affect planetary precession? Can we modify Newton’s gravitational equation
through the influence of gravitational waves?