BRAIN TEASERS
Stereograms (page 21)

Stereograms (page 21)

3d images. These are the tasks listed 201 to 210.
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What hides this stereogram?

Stereogram - 3D Image
ENLARGE IMAGE
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[link]

What is hidden in 3D image?

Stereogram - 3D Image
ENLARGE IMAGE
#brainteasers #stereogram #3Dimage
[link]

What is hidden in 3D image?

Stereogram - 3D Image
ENLARGE IMAGE
#brainteasers #stereogram #3Dimage

Bubba and Junior were standing...

Bubba and Junior were standing at the base of a flagpole, looking up.
A woman walked by and asked what they were doing. "We're supposed to find the height of the flagpole," said Bubba, "but we don't have a ladder."
The woman took a wrench from her purse, loosened a few bolts, and laid the pole down. Then she took a tape measure from her pocket, took a measurement, announced, "Eighteen feet, six inches," and walked away.
Junior shook his head and laughed. "Ain't that just like a dumb blonde! We ask for the height, and she gives us the length!"
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[link]

What hides this stereogram?

Stereogram - 3D Image
ENLARGE IMAGE
#brainteasers #stereogram #3Dimage
[link]

What hides this stereogram?

Stereogram - 3D Image
ENLARGE IMAGE
#brainteasers #stereogram #3Dimage
[link]

What is hidden in 3D image?

Stereogram - 3D Image
ENLARGE IMAGE
#brainteasers #stereogram #3Dimage
[link]

What hides this stereogram?

Stereogram - 3D Image
ENLARGE IMAGE
#brainteasers #stereogram #3Dimage
[link]

What hides this stereogram?

Stereogram - 3D Image
ENLARGE IMAGE
#brainteasers #stereogram #3Dimage
[link]

What hides this stereogram?

Stereogram - 3D Image
ENLARGE IMAGE
#brainteasers #stereogram #3Dimage
[link]

What is hidden in 3D image?

Stereogram - 3D Image
ENLARGE IMAGE
#brainteasers #stereogram #3Dimage
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Perkin patent for aniline dye

In 1856, William Henry Perkin, an English chemist, applied for a British patent titled "Dyeing Fabrics" for his invention of aniline dye "producing a new coloring matter for dyeing with a lilac or purple color stuffs of silk, cotton, wool or other materials." It was sealed on 20 Feb 1857. This was the first synthetic dye, which he obtained at first unintentionally from coal tar (a by-product of coal gas production) while seeking a method to prepare the anti-malarial drug quinine from that source. Perkin was just 18 years old. With help from his father and brother, he began manufacturing the dye, which he called Tyrian purple. Within a few years, he was wealthy and in in 1873 sold the business to turn to chemistry full-time.«
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