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Gerardo De Leon

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Roald Hoffmann

Born 18 Jul 1937. Polish-born American chemist, corecipient, with Fukui Kenichi of Japan, of the Nobel Prize for Chemistry in 1981 for their independent investigations of the mechanisms of chemical reactions. His work aims at theoretically anticipating the course of chemical reactions. It is based on quantum mechanics (the theory whose starting point is that the smallest building blocks of matter may be regarded both as particles and as waves), which attempts to explain how atoms behave. Orbital interaction and symmetry relations between molecules or parts of molecules are fundamental to this theory of conservation of orbital symmetry in chemical reactions.

A rich man was trying to find...

A rich man was trying to find his daughter a birthday gift when he saw a poor man with a beautiful white horse. He told the man that he would give him $500 for the horse.
The poor man replied, "I don't know mister, it don't look so good," and walked away.
The next day the rich man came back and offered the poor man $1000 for the horse.
The poor man said, "I don't know mister, it don't look so good."
On the third day the rich man offered the poor man $2000 for the horse, and said he wouldn't take no for an answer. The poor man agreed, and the rich man took the horse home.
The rich man's daughter loved her present. She climbed onto the horse, then galloped right into a tree.
The rich man rushed back over to the poor man's house, demanding an explanation for the horse's blindness.
The poor man replied, "I told you. It don't look so good."
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