MATH PUZZLE: Can you replace...
[2511] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 272 - The first user who solved this task is Roxana zavari
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 272
The first user who solved this task is Roxana zavari.
#brainteasers #math #riddles
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HANNIBAL BURESS - dudes in my neighborhood that have handlebar mustaches

@hannibalburess http://on.cc.com/1BU4c7D

There's a lot of dudes in my neighborhood that have handlebar mustaches.

Which is cool if you want to have a handlebar mustache.

But don't try to have a conversation with me like you don't have a handlebar mustache.

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Peter Dollond

Died 2 Jul 1820 (born 1730).British optician, son of John Dollond. Peter, though lacking a theoretical background, invented the triple achromatic lens still in wide use, made substantial improvements in the astronomical refracting telescope, and improved navigation instruments of his day. In 1765, he placed convex lenses of crown glass on either side of a biconcave flint glass lens to make the achromatic triplet lens to further improve the correction of colour fringes. (In 1733, Chester Moore Hall had invented the achromatic lens system by joining a crown glass lens and a flint glass lens, which reduce chromatic aberration.)
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