In what year did Einstein publish the general theory of relativity?

In what year did Einstein publish the general theory of relativity?

• A. 1609
• B. 1905
• C. 1915
• D. 1935

Answer: (C)

General relativity reimagines gravity as the curvature of spacetime produced by mass and energy, with matter following the curved paths laid out by that geometry. This idea comes from the equivalence principle—the notion that being at rest in a gravitational field is locally indistinguishable from accelerating in empty space—and is formalized through Einstein’s field equations that relate spacetime curvature to energy and momentum. The year this theory was published is 1915, after Einstein spent years developing it from the principles above. This work extended the earlier special relativity of 1905, which covers non-accelerating frames, to include gravitation and accelerating frames. For context, the subsequent 1919 solar eclipse observations helped confirm the prediction that light bends in a gravitational field, lending strong empirical support, while 1935 introduced the famous EPR discussion.

General relativity reimagines gravity as the curvature of spacetime produced by mass and energy, with matter following the curved paths laid out by that geometry. This idea comes from the equivalence principle—the notion that being at rest in a gravitational field is locally indistinguishable from accelerating in empty space—and is formalized through Einstein’s field equations that relate spacetime curvature to energy and momentum.

The year this theory was published is 1915, after Einstein spent years developing it from the principles above. This work extended the earlier special relativity of 1905, which covers non-accelerating frames, to include gravitation and accelerating frames. For context, the subsequent 1919 solar eclipse observations helped confirm the prediction that light bends in a gravitational field, lending strong empirical support, while 1935 introduced the famous EPR discussion.