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Who Invented the Overhead Projector?
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The first concept of a projector was by a German Priest in 1646. Athanasius Kircher used a candle to project hand drawn images on to a white wall. You can find more information here: http://www.topbits.com/who-invented-the-projector.html
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Overhead
Projector
Parts
Overhead
Projector
Diagram
History of the
Overhead
Projector
Overhead
Projector
Construction
How Do
Overhead
Projectors
Function?
Who
Invented
The
Overhead
Projector
?
Inventor of the
Overhead
Projector
Inventions
of the 1960's
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