Monday, 25 January 2016

Is space-time a prism?



Tl;dr: A new paper demonstrates that quantum gravity can split light into spectral colors. Gravitational rainbows are almost certainly undetectable on cosmological scales, but the idea might become useful for Earth-based experiments.
Einstein�s theory of general relativity still stands apart from the other known forces by its refusal to be quantized. Progress in finding a theory of quantum


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