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Eugenio G. F. de Kereki

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17. Fazil Hashim 1533
18. Darrin Haywood 1358
19. Eugenio G. F. de Kereki 1266
20. Gospodja Pufna 1163
21. Neelima Subrahmanyam 1106
last 3 solved tasks
MATH PUZZLE: Can you replace the question mark with a number?
Find the country and its capital city, using the move of a chess knight. First letter is P. Length of words in solution: 6,6,4.
NUMBERMANIA: Calculate the number 7747 using numbers [4, 9, 6, 6, 31, 757] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Pierre-Joseph Pelletier

Born 22 Mar 1788; died 19 Jul 1842 at age 54. French chemist who is known for his research in partnership with Joseph-Bienaimé Caventou into vegetable bases and the resulting contributions of alkaloid chemistry to the field of medicine. They helped found the chemistry of vegetable alkaloids. They isolated chlorophyll (1817), for which they coined the French name chlorophyle in Ann. de Chimie (1818), IX, 195. Their alkaloid discoveries included strychnine (1818), brucine (1819), quinine (1820), caffeine (1821), and cinchonine. In 1823, using elementary closed-tube analyses in which the alkaloids were combusted, they discovered nitrogen was present in the compounds. Alkaloids are organic compounds which form water-soluble salts that perform various functions in medicine, including analgesics (pain-killers), and respiratory stimulants.

Tenses

A teacher says, “Okay, class. Today we're going to be talking about the tenses. If I say ‘I'm beautiful,' which tense is it?”
Little Johnny raises his hand and says, “Obviously past tense, Miss.”

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