What hides this stereogram?

Stereogram - 3D Image

#brainteasers #stereogram #3Dimage

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A woman was found guilty in tr...

A woman was found guilty in traffic court and when asked for her occupation she said she was a schoolteacher. The judge rose from the bench. "Madam, I have waited years for a schoolteacher to appear before this court."
He smiled with delight. "Now sit down at that table and write 'I will not run a red light' five hundred times."

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Sir David Brewster

Born 11 Dec 1781; died 10 Feb 1868 at age 86. Scottish physicist who is noted for his experimental work in optics and polarized light (light in which all waves lie in the same plane.) He is known for Brewster's Law, which relates the refractive index of a material to its polarizing angle (which is the incident angle at which reflected light becomes completely polarized). At 10 years old, a child prodigy, he constructed a telescope. In middle age, he patented the kaleidoscope (1817). Later, he used lenses to improve three-dimensional images viewed with a stereoscope. Brewster also recommended the use of the lightweight, flat Fresnel lens in lighthouses.

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