Noleli’s avatarNoleli’s Twitter Archive—№ 20,101

    1. If spacetime itself is warping, how can we detect it? Oh, the speed of light is constant. But isn’t speed defined wrt space and time. 🤔😭
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  1. …in reply to @Noleli
    Noleli They measured displacement of the mirror. They could also have measured a freq shift from light at the end of the tube.
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