what was used before holographics were invented?
Holography came about through one scientist’s desire to improve the resolution of his electron microscope. Dennis Gabor created the theory of holography but was unable to develop it further due to the lack of non-“coherent” light sources. Later, when these light sources became more monochromatic, lasers were used to produce holograms. However, the inspiriation to it all, and the predecessor to holographics, was the electron microscope. Electron microscopes are used to create an illuminated and magnified image of a specimen through the use of a partical beam of electrons.
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