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“Rediscovering” is a bit of stretch here, given that sundials do not perform multi-tier machine learning network evaluations.

Our grasp of materials science to date has not permitted compact, stable, passive optical computational systems at the degree necessary to implement digit parsing. That’s the advancement shown here.




I believe OP is referring to:

* https://3dprint.com/103289/open-source-3d-print-sundial/

* https://en.m.wikipedia.org/wiki/Digital_sundial

Not to diminish the advance demonstrated in the paper.




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