Comment on If there's a sort of "apocalyptic" event but there are still surviving communities, will people be able to make eyeglasses again, or are people with vision issues gonna be fucked?

AbouBenAdhem@lemmy.world ⁨6⁩ ⁨days⁩ ago

• ivanafterall@lemmy.world ⁨6⁩ ⁨days⁩ ago

  Any glass? Any grinder? Can I find a broken window and start sanding it with sandpaper, as an extreme example?

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  • Zer0_F0x@lemmy.world ⁨6⁩ ⁨days⁩ ago

    Some glass is many sheets glued together, that could be trickier to work with

    Thick glass that’s not tempered will be the easiest to work with

    Pretty much any piece of glass and a series of sandpapers going from low to high grit will eventually work if you know what you’re doing

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    • ivanafterall@lemmy.world ⁨5⁩ ⁨days⁩ ago

      That’s pretty crazy.

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  • Nibodhika@lemmy.world ⁨6⁩ ⁨days⁩ ago

    Yes, it’s not magic, it’s just the shape of the glass that makes the focus point of images be slightly closer or further apart.

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  • EnsignWashout@startrek.website ⁨6⁩ ⁨days⁩ ago

    Can I find a broken window and start sanding it with sandpaper, as an extreme example?

    Yes, provided you have a way to polish it back TU transparent again, after changing the shape.

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    • ivanafterall@lemmy.world ⁨5⁩ ⁨days⁩ ago

      Ohhhh, cool. I knew it was glass, but I guess I did kind of think there was some magic going on in there somewhere. Way simpler than I realized.

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  • HeyThisIsntTheYMCA@lemmy.world ⁨5⁩ ⁨days⁩ ago

    i feel like there’s some sort of childhood song about the dangers of silicosis we were supposed to learn but praise mandela didn’t

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    • ivanafterall@lemmy.world ⁨5⁩ ⁨days⁩ ago

      Silicosis sounds so silly!

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      • HeyThisIsntTheYMCA@lemmy.world ⁨5⁩ ⁨days⁩ ago

        Image

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