Relativity visualized
Space Time Travel |
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A short movie of a "real" Einstein ring: It shows a black hole passing in front of a portrait of Albert Einstein. Gravitational light deflection near the black hole produces the ring-shaped distortions of the picture.
Einstein predicted this phenomenon in 1936, but thought that it would probably never be observable in nature. However, in the meantime there have been many astronomical observations of this "gravitational lensing effect".
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