I don’t see how an invention so useful had to wait until the XX Century to get in widespread use, being that colored crystal exists since roman times.
I understand that glass manufacture was a quite complicated task in the past and that it was more affordable to wear hats that partially served the same task down the sleave, but…
From the XV Century to now making colored glass was a bit more than blowing and there was almost abundance of it from leftovers of vitreaux, so why didn’t at least some monks came with the idea?
In: Technology
While mankind has know how to make glass for 1000’s of years making glass that is clear enough with no distortion is something that has only been possible in recent times. If you think that distortion is “no big deal” try wearing one of your friends prescription glasses and you’ll see what I mean…
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