Practical Uses
While stereograms have typically been used for amusement, including stereographic cards, 3D films, printings using anaglyph and pictures, posters and books of autostereograms, there are also serious uses of the technologies.
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Famous quotes containing the word practical:
“The science of constructing a commonwealth, or renovating it, or reforming it, is, like every other experimental science, not to be taught a priori. Nor is it a short experience that can instruct us in that practical science, because the real effects of moral causes are not always immediate.”
—Edmund Burke (1729–1797)
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—Susan Sontag (b. 1933)