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Did they have digital light detectors in the 70s? I mean, it’s trivial now to aim something at the sun now, but they didn’t have image recognition then. A primi
by manmal 9y ago
Did they have digital light detectors in the 70s? I mean, it’s trivial now to aim something at the sun now, but they didn’t have image recognition then. A primitive heat sensor perhaps?
- jacquesm 9y agoYes, CDS cells are much older than that, and Ge diodes are light sensitive too.