Find the area (A=?) of the s...
[2571] Find the area (A=?) of the s... - Find the area (A=?) of the shaded square if length of red line p=51. Express result to the accuracy of 3 decimal. - #brainteasers #math #riddles - Correct Answers: 39 - The first user who solved this task is Manguexa Wagle
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Find the area (A=?) of the s...

Find the area (A=?) of the shaded square if length of red line p=51. Express result to the accuracy of 3 decimal.
Correct answers: 39
The first user who solved this task is Manguexa Wagle.
#brainteasers #math #riddles
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The Good, the Bad and the U...

The Good, the Bad and the Ugly
Good: Your hubby and you agree, no more kids.
Bad: You can't find your birth control pills.
Ugly: Your daughter borrowed them.
Good: Your son studies a lot in his room.
Bad: You find several porn movies hidden there.
Ugly: You're in them.
Good: Your husband understands fashion.
Bad: He's a cross-dresser.
Ugly: He looks better than you.
Good: Your son's finally maturing.
Bad: He's involved with the woman next door.
Ugly: So are you.
Good: You give the birds and bees talk to your daughter.
Bad: She keeps interrupting.
Ugly: With corrections.
Good: Your wife's not talking to you.
Bad: She wants a divorce.
Ugly: She's a lawyer.
Good: The postman's early.
Bad: He's wearing fatigues and carrying an AK47.
Ugly: You gave him nothing for Christmas.
Good: Your daughter got a new job.
Bad: As a hooker.
Ugly: Your co-workers are her best clients.
Way ugly: She makes more money than you do.
Good: Your son is dating someone new.
Bad: It's another man.
Ugly: He's you're best friend.
Good: Your wife is pregnant.
Bad: It's triplets.
Ugly: You had a vasectomy five years ago.
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Achromatic lenses

In 1758, optician John Dolland, having created achromatic lenses, reported this to the Royal Society. Isaac Newton had described the blurring effect due to chromatic abberation, but could not solve the problem in simple lenses, which was important in the preparation of lenses for telescopes and microscopes. A concave face of a lens of flint glass (which has a greater color dispersion than crown glass) is cemented to a convex face of a crown glass lens. Thus the dispersion properties causing chromatic aberration are removed from both lenses simultaneously. Although Dollond patented the discovery of the achromatic lens in the mid-18th century, it is widely believed that he was not its inventor, but learned about it from lens maker George Bass.
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