[ noun ] (physics) the force by which bodies repel one another
Used in print(J. F. Vedder, "Micrometeorites", in Francis S. J...)
The Poynting-Robertson effect ( Robertson , 1937 ; Wyatt and Whipple , 1950 ) , which is a retardation of the orbital motion of particles by the relativistic aberration of the repulsive_force of the impinging solar_radiation , causes the dust to spiral into the sun in times much shorter than the age of the Earth .
Further , the corpuscular_radiation , i.e. , the solar_wind protons , must sputter away the surface atoms of the dust and cause a slow diminution in size , with a resultant increase in both the Poynting-Robertson effect and the ratio of the repulsive_force to the gravitational_force .