Well, OK, not exactly. A beam of light could pass through air all day long (as long as you have a layer of air 26 billion kilometers long) and not deviate a whit. But if the density of that air ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...

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Reviewed Work: On the Double Refraction of Light, According to the Principles of Fresnel. Mr. M'Cullagh's Papers by Mr. M'Cullagh Review by: W.