Super, Man
Faster than a speeding photon? Precursors test whether light can be faster than light
While we wait [for neutrino analysis], it is worth noting that in June 0f 2011 a group of researchers performed an experiment to see if light itself could move faster than light! In particular, the scientists used a little known optical phenomenon known as an optical precursor to see if individual photons might travel faster than while propagating in a material. In the end, the experiment suggests that these single photons did not in fact violate Einstein’s speed limit, though the results still got a significant amount of press.
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