General Relativity
General Relativity, proposed by Einstein, is a theory that describes how gravity works. It posits that objects, like planets, cause space and time to curve around them, and this curvature influences the motion of other objects. Consider how a bowling ball placed on a trampoline stretches it, causing a marble nearby to roll towards it. Similarly, the Earth warps space-time around it, causing the Moon to orbit. This theory also predicts phenomena like black holes and gravitational waves, ripples in space-time triggered by cosmic events.
Additional Insights
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General relativity, proposed by Albert Einstein in 1915, is a theory of gravitation that describes gravity not as a force but as a curvature of space-time caused by mass. Imagine space-time as a stretched rubber sheet; when a heavy object, like a planet, is placed on it, the sheet bends around that object. Other objects nearby follow curved paths due to this bending, resulting in what we perceive as gravitational attraction. This theory has profound implications for understanding the universe, including black holes, the bending of light around massive objects, and the expansion of the cosmos.