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Abdullah Hadžić

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Mathematical Puzzle: If 2+7=63, 3+2=10, 4+8=96, 5+6=66 then, 9+5=?
If 1+5=18, 2+10=36, 3+15=54 then, 4+20=?
What is the highest number you can make by moving only 2 matchsticks?

Friedrich Konrad Beilstein

Died 18 Oct 1906 at age 68 (born 17 Feb 1838).Russian chemist whose research in organic chemistry included studying isomeric benezene derivatives. His lasting legacy, though, was starting the systematical description of organic compoounds, which he compliled in the publication of his Handbuch der organischen Chemie, (1880-82; Handbook of Organic Chemistry). He aimed that it should be a complete catalog, and already in its first edition, the two volumes described 15,000 compounds. As organic chemistry continued to grow rapidly, he published expanded second and third editions. After Beilstein's death, because of its great value to organic chemists, work on updating the publication was taken on by the Deutsche Chemische Gesellschanft, which.has continued to publish it.«

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