Color photography is photography that uses media capable of capturing and reproducing colors. By contrast, black-and-white (monochrome) photography records only a single channel of luminance (brightness) and uses media capable only of showing shades of gray.
invented by Karl Von Drais
The dandy horse, a derogatory term for what was first called a Laufmaschine (in…
invented by Joseph Henry
A relay is an electrically operated switch. It consists of a set of input…
invented by Francis Ronalds
An electrical telegraph was a point-to-point text messaging system, used from…
invented by James Beaumont Neilson
Hot blast refers to the preheating of air blown into a blast furnace or other…
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