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Nemanja Katanic

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last 3 solved tasks
NUMBERMANIA: Calculate the number 2632 using numbers [7, 5, 1, 1, 29, 326] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Can you count the number of squares in the picture?
MATH PUZZLE: Can you replace the question mark with a number?

Charles Palache

Born 18 Jul 1869; died 5 Dec 1954 at age 85.American mineralogist who was one of the most eminent crystallographers and mineralogists of the world, he lived in a period of revolutionary developments in mineralogical science. At the University of California (PhD 1887), he did the field work for the first geologic maps of the San Francisco Peninsula and the Berkley area. In 1895, while at Heidelberg taking courses in petrography, he was introduced to morphological crystallography by Victor Goldschmidt. Palache threw himself with enthusiasm into the study of crystals, and laid the foundation for the work he pursued vigorously for the next fifty-five years.Image: Crystal drawing of usual graphite crystal from Sterling Hill, NJ, from Palache's 1941 paper in American Mineralogist.

Anniversary Flowers

A sad-faced Doug walked into a flower shop early one morning.

The clerk was ready to take his order for a funeral piece, based on the look on Doug's face, but soon realized his assumption was wrong as Doug asked for a basket of flowers sent to his wife for their anniversary.

"And what day will that be?" the clerk asked.

Glumly he replied, "Yesterday".

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