Calculate the number 5589
[1214] Calculate the number 5589 - NUMBERMANIA: Calculate the number 5589 using numbers [9, 7, 5, 5, 92, 658] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 22 - The first user who solved this task is Sanja Šabović
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Calculate the number 5589

NUMBERMANIA: Calculate the number 5589 using numbers [9, 7, 5, 5, 92, 658] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 22
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Southwest

A mother and her very young son were flying Southwest Airlines from Kansas City to Chicago. The little boy (who had been looking out the window) turned to his mother and asked, "If big dogs have baby dogs, and big cats have baby cats, why don't big airplanes have baby airplanes?"
The mother (who couldn't think of an answer) told her son to ask the stewardess.
So the boy went down the aisle and asked the stewardess. The stewardess, who was very busy at the time, smiled and said, "Did your Mom tell you to ask me?"
The boy said, "yes she did."

"Well, then, you go and tell your mother that there are no baby airplanes because Southwest always pulls out on time. Have your Mom explain that to you."  

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William N. Lipscomb Jr.

Died 14 Apr 2011 at age 91 (born 9 Dec 1919).William Nunn Lipscomb was an American physical chemist who won the Nobel Prize for Chemistry in 1976 for his research on the structure of boranes (boron hydride compounds), work which also answered general questions about chemical bonding. Boranes became important in chemical research in the 1940s and ‘50s because of the need to find volatile uranium compounds (borohydrides) for isotope separation, as well as the need to develop high-energy fuels for rockets and jet aircraft. To map the molecular structures of boranes, Lipscomb also developed x-ray techniques that later found application in many other areas of chemical research. Lipscomb's research interests included the relationship of three-dimensional structure and mechanisms of enzymes and other proteins.
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