10 ene 1842 año - Sir John Herschel
Descripción:
England. Sir John was a astronomer, seeking a way to document his notes.Created the Cyanotype Process: a blueprint process where the paper was coated with iron salts and then used in contact printing. The paper was washed in water and after a white image on a blue background appeared.
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10 ene 1842 año
Ahora mismo
~ 182 years ago
