What is hidden in 3D image?

Stereogram - 3D Image

#brainteasers #stereogram #3Dimage

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The American education and Pink Floyd

The American education system obviously listen to Pink Floyd.

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They've left those kids a loan.

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Colorscope

In 1930, the Colorscope was first publically demonstrated in New York City. It used a photocell that reacts to colours of light, and could match colours more exactly than the human eye. The tiny electrical current generated was sufficient to operate relays or meters. It was invented by Harold H. Sheldon and Dr. Walter A Schneider.

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