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New Theories / Re: Do all things glow in the dark?
« on: 21/06/2017 17:55:55 »
Your phrasing is unclear to me. I think you should say that there would be no light to detect without a substance to detect it, which is the same as saying there would be no light to detect without a substance to emit it. So of course, without anything to detect the light from the sun, it cannot be detected, but it doesn't mean it has not been emitted.