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Srdjan Cvetanovic

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Waldo Semon

Died 26 May 1999 at age 100 (born 10 Sep 1898).American chemical engineer who invented plasticized PVC (vinyl). In 1926's, he discovered how to convert polyvinyl chloride from a hard, unworkable substance to a pliable one. It is now used in hundreds of products such as floor tile, garden hose, imitation leather, shower curtains, and coatings. It is produced in larger quantities than any other plastic except polyethylene. Semon also made pioneering contributions in polymer science, including new rubber antioxidants. His technical leadership led to discovery of three major new polymer families: thermoplastic polyurethane, synthetic "natural" rubber, and oil-resistant synthetic rubbers. Semon held 116 U.S. patents.

A lion woke up one morning fee...

A lion woke up one morning feeling rowdy. He went out and cornered a small monkey and roared, "Who is mightiest of all jungle animals?"
The trembling monkey said, "You are, mighty lion!"
Later, the lion confronted a deer and bellowed, "Who is mightiest of all jungle animals?"
The terrified deer stammered, "Oh great lion, you are by far the mightiest animal in the jungle!"
On a roll, the lion swaggered up to an elephant and roared, "Who is mightiest of all jungle animals?"
The elephant snatched up the lion with his trunk, slammed him against a tree, stomped on him and then ambled away.
The battered lion hollered after the elephant, "Sheesh, just because you don't know the answer, you don't have to get so upset."
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