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Einstein’s theory of relativity revolutionized our understanding of the universe from "summary" of The Science of Interstellar by Kip Thorne
Einstein's theory of relativity is a masterpiece of human creativity that revolutionized our understanding of the universe. It is a profound insight into the nature of space, time, and gravity, revealing a world far stranger and more wondrous than anyone had ever imagined. The theory consists of two parts: the special theory of relativity and the general theory of relativity. The special theory, formulated in 1905, shows that space and time are not separate entities but are woven together into a four-dimensional fabric known as spacetime. This fabric can be warped and stretched by massive objects, such as stars and black holes, causing them to curve and bend in ways that defy common sense. The general theory of relativity, published by Einstein in 1915, goes even further, describing gravity as the result of the curvature of spacetime caused by the presence of matter and energy. According to this theory, massive objects like planets and stars create "dents" in the fabric of spacetime, causing other objects to move along curved paths in response to this curvature. This is why the Earth orbits the Sun and why light from distant stars can be bent by the gravity of galaxies. One of the most remarkable predictions of general relativity is the existence...
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