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Find the next number in the ...

Find the next number in the sequence 8573, 3835, 5324, ...

Correct answers: 40

The first user who solved this task is Alfa Omega.

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Paying Extra for Good Looks

The person sitting next to me on a flight was a woman. Ever the charmer, I used one of my pick-up lines on her.
I asked, “Does the airline charge you extra for sitting next to good-looking men?”
“Yes,” she replied, “but I wasn’t willing to pay.”

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Thomas Midgley Jr.

Died 2 Nov 1944 at age 55 (born 18 May 1889).American engineer and chemist who discovered the effectiveness of tetraethyl lead (C2H5)4Pb in 1921 as an antiknock additive for gasoline. Knocking jars the wall of the automobile cylinders by the explosion instead of steadily pushing the cylinder back. This wastes a large percentage of the energy and damages the engine. He also developed carbon tetrafluoride (CF4) a cleaning agent and in 1930 dichlorofluoromethane (CCl2F2) later called "Freon". This is a non-toxic and non-flammable gas, unreactive at normal temperatures but able to be easily liquified by pressure alone. It replaced toxic gases previously used in home refrigeration.

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