Find a famous person
[5631] Find a famous person - Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 7,6. - #brainteasers #wordpuzzles - Correct Answers: 24 - The first user who solved this task is Nílton Corrêa De Sousa
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Find a famous person

Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 7,6.
Correct answers: 24
The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #wordpuzzles
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Polishing Apples

A young man asked an old rich man how he made his money.
The old guy fingered his expensive wool vest and said, "Well, son, it was 1932. The depth of the Great Depression. I was down to my last nickel."
"I invested that nickel in an apple. I spent the entire day polishing the apple and, at the end of the day, I sold the apple for ten cents."
"The next morning, I invested those ten cents in two apples. I spent the entire day polishing them and sold them at 5:00 pm for 20 cents. I continued this system for a month, by the end of which I'd accumulated a fortune of $9.80."
"Then my wife's father died and left us two million dollars."

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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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