Comment on Researchers shrink camera to the size of a salt grainparentComments−Keppl8R4yReminds me of another Scifi book called "Light of Other Days" by Bob Shaw in which the story uses the idea of "slow glass": glass through which light takes years to pass.https://en.wikipedia.org/wiki/Light_of_Other_Days
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Reminds me of another Scifi book called "Light of Other Days" by Bob Shaw in which the story uses the idea of "slow glass": glass through which light takes years to pass.
https://en.wikipedia.org/wiki/Light_of_Other_Days