What is hidden in 3D image?
[3143] What is hidden in 3D image? - Stereogram - 3D Image - #brainteasers #stereogram #3Dimage
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What is hidden in 3D image?

Stereogram - 3D Image
#brainteasers #stereogram #3Dimage
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Columbus

Columbus
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Cotton gin

In 1794, Eli Whitney was issued a U.S. patent for his cotton gin. His invention replaced much processing by hand labour, and revolutionized the textile industry. Cotton became commercially important in the southern US, with a resulting demand for slaves to tend the fields and harvest the cotton crops.[Image: detail from copy of Whitney's patent made by the Patent Office in 1845.]
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