single photon

Wed
27
Jul
Dennis Faas's picture

Time Travel 'Impossible,' Scientists Say

From Family Matters to The Simpsons and, of course, Back to the Future, the idea of time travel has become a common theme in American pop culture. There's no doubt, then, that many will be disappointed to hear of a new report from a group of Hong ... Kong scientists which suggests that traveling through time is simply impossible. The report comes from the Hong Kong University of Science and Technology, where researchers under the direction of Professor Shengwang Du have concluded that single photons (the absolute smallest particle of light) simply can't travel faster than light. The finding is ... (view more)

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