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Reyhan S

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93. Victoria Ogino 53
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97. Žarko Stevanović 49
last 3 solved tasks
If 568ba - b893c = 79aa find number abc. Multiple solutions may exist.
If bac6c - 840a2 = bca5 find number abc. Multiple solutions may exist.
If 2463c + 5b46a = 84cba find number abc. Multiple solutions may exist.

Richard Zsigmondy

Died 23 Sep 1929 at age 64 (born 1 Apr 1865).Richard Adolf Zsigmondy was an Austro-German chemist who was awarded who was awarded the Nobel Prize for Chemistry in 1925 for “his demonstration of the heterogenous nature of colloid solutions and for the methods he used, which have since become fundamental in modern colloid chemistry."” Colloids are composed of submicroscopic particles dispersed within another substance. To conduct his research on colloids he invented the ultramicroscope (1903), with which he could view particles with a diameter of one 10-millionth of a millimetre not visible in a conventional microscope. It used an intense beam of light oriented in a position perpendicular to the microscope's optical axis. As particles scattered the incident light, their movements could be seen as flashes against a dark background.«

Doctor: What’s wrong with y...

Doctor: What’s wrong with your brother?
Boy: He thinks he is a chicken.
Doctor: really? How long has this been going on?
Boy: Five years.
Doctor: Five years!
Boy: We would have brought him in earlier, but we needed the eggs.
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