Elon Musk arrived in the nation’s capital with the chain saw-wielding swagger of a tech titan who had never met a problem he ...

I ordered a modular sofa that was clearly advertised and pictured as orange. What arrived was unmistakably yellow – not a shade off, not lighting differences – a completely different color.

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Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, U.K. Kavli Institute of Nanoscience Discovery, University of Oxford, Dorothy Crowfoot Hodgkin Building, Oxford OX1 ...