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Oana Cernat

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Edward A. Doisy

Born 13 Nov 1893; died 23 Oct 1986 at age 92.Edward Adelbert Doisy was an American biochemist who shared (with Henrik Dam) the 1943 Nobel Prize for Physiology or Medicine for his isolation and synthesis of vitamin K, a substance that encourages blood clotting (1939), used in medicine and surgery. With the embryologist Edgar Allen (1922-34), he developed assay techniques that facilitated research on sex hormones. Doisy and his associates isolated the sex hormones estrone (theelin, 1929; the first estrogen to be crystallized), estriol (theelol, 1930), and estradiol (dihydrotheelin, 1935). In 1936-39 he isolated two forms of the vitamin, (K1 from lucerne seed and K2 from fish meal, in a pure crystalline form), determined their chemical structures, and synthesized the vitamin.«

The blind salesman

A guy goes into Wal-Mart to buy a rod and reel. He doesn't know which one to get, so he just grabs one and goes over to the register. There is a Wal-Mart associate standing there with dark shades on. He says, "Excuse me, Sir...can you tell me anything about this rod and reel?"

He says, "Sir, I'm blind, but if you will drop it on the counter I can tell you everything you need to know about it from the sound that it makes." The guy didn't believe him but dropped it on the counter anyway.

He said, "Thats a 6' graphite rod with a Zebco 202 reel and 10 lb. test line...It's a good all around rod and reel, and it's $20.00."

The guy says, "It is amazing that you can tell all that just by the sound of it dropping on the counter. I think it's what I'm looking for, so I'll take it."

He walks behind the counter to the register, and in the meantime the guy farts. At first he is embarrassed but then realizes that there is no way he could tell it was him. Being blind, the salesman wouldn't know that he was the only other person around. He rings up the sale and says, "That will be $25.50."

The guy says, "But didn't you say it was $20.00?" He says, "Yes sir, the rod and reel is $20.00, the duck call is $3.00, and the catfish stink bait is $2.50."

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