A chunk of pure Cadmium Sulfide [4032x3024 - 1.64MB] | Poal: Say what you want.

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A chunk of pure Cadmium Sulfide [4032x3024 - 1.64MB] (pic8.co)

Of the kind used in photocells.

Of the kind used in photocells.

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[–] • 0 pt

The job itself was just a commercial instrument (industrial) but the man who founded the business was a scientist first and a manufacturer second.

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