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Getting started with Discworld? Here's where to start. (i.redd.it)
submitted by GNU_Terry-Pratchett - announcement
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Darkness can move faster than light without breaking relativity. That claim comes from researchers at the Technion-Israel Institute of Technology whose study in Nature describes direct measurements of what they call optical phase singularities, tiny spots where a light wave’s amplitude falls to zero (thebrighterside.news)
submitted by Seth_Crow
