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jan 4, 1939 - View-Master

Description:

William Gruber invented a stereoscopic viewing device that uses reels of 7 3D images in full colour. During World War II, the army used 5,000,000 reels to train recruits to identify enemy ships.

http://jaredjared.com/wp-content/uploads/2011/10/Bendis-Stereoscopy.pdf

Added to timeline:

Development of Virtual Reality Technology and Training Use

ByMary Ellis
18 Sep 2017
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Date:

jan 4, 1939
Now
~ 86 years ago
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