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
LSD: My Problem Child
Albert Hofmann, Jonathan Ott and Amanda Feilding
Book
Albert Hofmann, who died in 2008 aged 102, first synthesized lysergic acid diethylamide (LSD) in...
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The Problem of Catalan
Yuri F. Bilu, Yann Bugeaud and Maurice Mignotte
Book
In 1842 the Belgian mathematician Eugene Charles Catalan asked whether 8 and 9 are the only...