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A comment on A Visionary Project Aims for Alpha Centauri, a Star 4.37 Light-Years Away. Parent comment

Re:A Visionary Project Aims for Alpha Centauri, a Star 4.37 ... by nardi on Tuesday April 12, 2016 @07:02PM (#11484341)
I'm not a physicist, but it seems like perfectly reflecting photons in a vacuum is different from being immune to conductive heat transfer in a plasma.
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Re:A Visionary Project Aims for Alpha Centauri, a Star 4.37 ... by gunn on Tuesday April 12, 2016 @07:16PM (#11484433)
That and reflecting one wavelength vs a wide spectrum.
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