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philosophers had become so accustomed to Newton's law of gravitation, and to the equality of gravitational and inertial mass, that the miraculousness of it was...

new theory of gravitation bringing in a very powerful kind of symmetry. This symmetry is of importance in physics only where gravitational fields occur...

his theory of gravitation, Newton assigned to every material body another property which is called its gravitational mass. Gravitational mass determines...

spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside...

(CRs), neutrinos and gravitational waves (GWs). In general, gamma rays are the perfect companions for multi-messenger astronomy ... gamma-ray production...

to small orbits. A similar situation occurred in astronomy, where the Newtonian law of gravitation had been found to predict the orbits of the outer...

Hoyle–Narlikar theory. Guru: Today I will discourse upon the violence in astronomy. Disciple: Revered Sir! Will you be describing the violent phenomenon...

including theories describing the behavior of aurorae, the Van Allen radiation belts, the effect of magnetic storms on the Earth's magnetic field, the...

the Moon blocks the Sun's radiation to part of the Earth, there is no discontinuity in the Earth's motion. If gravitational attraction were radiated as...

Astrobiology", p. 11 A similar situation occurred in astronomy, where the Newtonian law of gravitation had been found to predict the orbits of the outer...

and was not to be likened to a mere mathematical fiction such as the gravitational field was then assumed to be. In his opinion, the phenomena of electricity...

beginning, the establishment of first ties between general relativity and astronomy was a tedious exercise involving only a small number of bridge builders...

mathematics connected with it which had previously been applied to the gravitational potential function. E. W. Hobson, Mathematics, from the points of view...

the average positive density due to matter. With zero total density, gravitational forces can be in static equilibrium. Hubble's subsequent discovery of...

Books, 1998, p. 84. A similar situation occurred in astronomy, where the Newtonian law of gravitation had been found to predict the orbits of the outer...

you take a region of space, get rid of all the particles and all the radiation ...so there's nothing there. That empty space weighs something, and we...

studies find that around 17–30% of solar-like stars host a planet. Gravitational microlensing, on the other hand, probes planets that are further away...

insolation and cool the target object by diverting or reducing the Sun's radiation. Light can be diverted by alternative methods. The concept of the construction...

problems because it is sometimes difficult to know whether all mass produces radiation. Archive in: Mass of the Milky Way Galaxy, University of Oregon. All objects...

discovering Uranus. He also discovered infrared radiation and made many other contributions to astronomy. His sister Caroline Herschel and son, Sir John...