30. června 2023 v 09:13
A photograph that a person’s eye sees is an image which is a result of a photochemical reaction that documents the impression of light onto a surface already coated with silver atoms. It was Fabricius – the alchemist – who first discovered the fact that light can react with these crystal photo chemically by changing silver ions (Ag+) to elemental silver (AgO) in 1556.
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