Calculate the number 508
[274] Calculate the number 508 - NUMBERMANIA: Calculate the number 508 using numbers [1, 5, 1, 7, 44, 206] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 43 - The first user who solved this task is Sanja Šabović
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Calculate the number 508

NUMBERMANIA: Calculate the number 508 using numbers [1, 5, 1, 7, 44, 206] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 43
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Ponderings Collection 30

If the black box flight recorder is never damaged during a plane crash, why isn't the whole airplane made out of the same stuff?
Why is there an expiration date on sour cream?
If most car accidents occur within five miles of home, why doesn't everyone just move 10 miles away?
If man evolved from monkeys and apes, why do we still have monkeys and apes?
I went to a bookstore and asked the saleswoman, "Where's the self-help section? She said if she told me, it would defeat the purpose.
If all those psychics know the winning lottery numbers, why are they all still working?
Why do we say something is out of whack? What is a whack?
Do infants enjoy infancy as much as adults enjoy adultery?
If a pig loses its voice, is it disgruntled?
Why do women wear evening gowns to nightclubs? Shouldn't they be wearing night gowns?
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Carl Auer, Freiherr von Welsbach

Born 1 Sep 1858; died 4 Aug 1929 at age 70.Carl Auer Freiherr (baron) von Welsbach was an Austrian chemist, physicist and engineer whose invention of the gas mantle greatly improved the brightness of light that could be obtained from gas lamps. While doing flame tests to examine the spectrum of certain rare earth compounds, he observed the small beads of test material on a platinum wire became white-hot and incandescent. He then had the idea to soak cotton webbing with a solution of the salts, then burn out the cotton leaving a matrix of the compound. His experiments began with slightly promising results with lanthanum oxide, then a mixture with magnesia. He also tried zirconium oxides and others before adding thorium oxide which made commercially viable mantles. His invention was adopted around the world wherever manufactured gas was available, meaning he had a profitable business improving and manufacturing them.«
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