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gravitational wavesThe Bookworms' Burrow | Alexandre Gomes
•72% Informative
Rainer Weiss was one of the chief architects behind the Laser Interferometer Gravitational-Wave Observatory ( LIGO ) His idea came to him during a course he taught on the obscure subject of general relativity, Einstein ’s theory of curved spacetime.
Weiss was essential in developing the concept and design for LIGO , marking a huge leap forward in the effort to detect gravitational waves.
Rai ’s idea was to use floating mirrors to build a far more precise instrument, an interferometer.
Instead of bouncing light along one arm, interferometers send light down two arms arranged in an L.
Each beam bounces off a mirror at the far end and returns down the respective arm to interfere back at the original apex.
If the arms are not the same length the light will come together but imperfectly, out of sync in a sense.
Rai 's idea underscores the birth of a transformative concept that would ultimately take shape as LIGO .
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