gravita

The totality of matter, stress, radiation, etc. acting as the “sources” of the gravita - tional field is denoted by Tab.

RELATIVITY BANESH HOFFMANN 1968

These in turn would imply, among other calamities, infinitely large gravita - tional curvatures not present in the original gab.

RELATIVITY BANESH HOFFMANN 1968

Einstein therefore took the mo - mentous step of regarding gab as representing gravita - tion, and by this act he gave gravitation a geometrical significance.

RELATIVITY BANESH HOFFMANN 1968

Now if we are to carry out our program of extending the principle of relativity to cover observers in gravi - tational fields and in accelerated frames of reference, we must say that this same law of motion (straight line motion) applies to a body moving freely in a gravita - tional field or in an accelerated frame of reference.

COSMOLOGY SINCE 1850 LLOYD MOTZ 1968

For if we were to add a bit of matter to it, the gravita - tional attraction would outweigh the cosmic repulsion and the universe would shrink to a smaller size, which would be just right for the new amount of matter (again completely filled).

COSMOLOGY SINCE 1850 LLOYD MOTZ 1968

No longer did the freely falling body seek its natural place as close as possible to its gravita - tional center.

Dictionary of the History of Ideas EDWARD ROSEN 1968

Since electromagnetism has energy, it has a gravita - tional effect.

RELATIVITY BANESH HOFFMANN 1968

G is the universal gravita - tional constant and c is the speed of light.

COSMOLOGY SINCE 1850 LLOYD MOTZ 1968

Only the coordinate difference to - gether with the field quantities which describe the gravita - tional field determine measurable distances between events.

Out Of My Later Years Einstein, Albert, 1879-1955 1950

The geometrical states of bodies and the rates of clocks depend in the first place on their gravita - tional fields, which again are produced by the material system concerned.

Out Of My Later Years Einstein, Albert, 1879-1955 1950