The Pinscreen Device
A pinscreen is a white screen that consists of thousands and thousands of pins in small holes. Light shines from the side of this platform causing each and every single pin to cast its own shadow. Each pin, being able to slide easily back and forth through the holes, can cast different shadows. The white screen becomes darker the farther the pins are pushed out. The more the pins are pushed in, the lighter the screen becomes, giving a grayish tone and eventually an all white screen again.
Smaller, cheaper models have since been developed as a 5×7 inch toy version called "Pin Art", sometimes sold in Science museums or through the Web and printed catalogs.
Read more about this topic: Pinscreen Animation
Famous quotes containing the word device:
“The man who pretends that the distribution of income in this country reflects the distribution of ability or character is an ignoramus. The man who says that it could by any possible political device be made to do so is an unpractical visionary. But the man who says that it ought to do so is something worse than an ignoramous and more disastrous than a visionary: he is, in the profoundest Scriptural sense of the word, a fool.”
—George Bernard Shaw (1856–1950)