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Black and Blue. Red and Gree...

Black and Blue. Red and Green. Yellow and Blue. Green and Grey. I am all colours. You can try to get close to me, but you can't escape my vision. If you get greedy, you will try to take your colours for yourself, but before you know it, I will be eating you for lunch. What am I?

Correct answers: 20

The first user who solved this task is Djordje Timotijevic.

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Rich Vos: Best Relationship Ever

The best relationship I ever had -- I used to go out with a homeless girl. Yeah, it was great cause after sex, I could just drop her off anywhere.

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Hans Buchner

Born 16 Dec 1850; died 5 Apr 1902 at age 51.Hans Ernst Angass Buchner was a German bacteriologist who discovered gamma globulins, natural bactericides carried in the blood, while making immunological studies in1886-90. He also devised methods of studying anaerobic bacteria. In 1891, Buchner proposed the existence of antibacterial proteins in blood serum which he called "alexines". This began a protracted debate with Metchnikoff, who championed a cellular theory of immunity. In 1893, he proposed that antitoxin formed directly from the toxin itself. With his brother, Eduard, in 1897, Hans demonstrated that completely dead yeast juice could ferment sugar, forming carbon dioxide and alcohol, exactly as the intact cells would have done. This presaged the description of enzyme activity.

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