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Brendon has been hired to pa...

Brendon has been hired to paint the numbers 1 through 100 on 100 apartments. How many times with he have to paint 8?

Correct answers: 130

The first user who solved this task is Maja Inkret.

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Ballpen in space

When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity.
To combat the problem, NASA scientists spent a decade and $12 billion to develop a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to 300 C.
The Russians used a pencil.

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Richard Christopher Carrington

Died 27 Nov 1875 at age 49 (born 26 May 1826).English astronomer who, by observing the motionsp of sunspots, discovered the equatorial acceleration of the Sun; i.e., that it rotates faster at the equator than near the poles. He also discovered the movement of sunspot zones toward the Sun's equator as the solar cycle progresses. Carrington devoted himself to the study of sunspots and his work, extending from 1853 to 1861, was collected in Observation of the Spots of the Sun (1863). Carrington also was the first to observe a sun flare (1859). He was observing a prominent group of sunspots on 1 Sep 1859, when suddenly "two patches of intensely bright and white light broke out." which brightened rapidly and decayed. The flare he had seen was of the rare variety that is visible in white light.(Image: detail of a drawing by R.C. Carrington, showing the location of the flare he observed while making a drawing of an active region. Reproduced from his 1860 paper in Monthly Notices of the Royal Astronomical Society)

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