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I have four wings, but canno...

I have four wings, but cannot fly, I never laugh and never cry; On the same spot I'm always found, toiling away with little sound. What am I?

Correct answers: 22

The first user who solved this task is Djordje Timotijevic.

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Thai Rivera: Paying Customer

I cant stand homeless people. I dont feel bad about saying it. I dont mind saying it because I give homeless people money. I give them more money than I should, so I feel, as a paying customer, I have a right to complain.

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Norman Ramsey

Died 4 Nov 2011 at age 96 (born 27 Aug 1915). Norman Foster Ramsey was an American physicist who shared (with Wolfgang Paul and Hans Georg Dehmelt) the 1989 Nobel Prize for Physics in 1989 for “for the invention of the separated oscillatory fields method and its use in the hydrogen maser and other atomic clocks.” His work produced a more precise way to observe the transitions within an atom switching from one specific energy level to another. In the cesium atomic clock, his method enables observing the transitions between two very closely spaced levels (hyperfine levels). The accuracy of such a clock is about one part in ten thousand billion. In 1967, one second was defined as the time during which the cesium atom makes exactly 9,192,631,770 oscillations.«

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