After writing a simple equation on the board the teacher asked if anyone could solve the problem.
Little Johnny walked up to the board, erased it and said, “Problem Solved.”
Pierre-Joseph PelletierDied 19 Jul 1842 at age 54 (born 22 Mar 1788). 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. |
