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2Physics Quote:
"About 200 femtoseconds after you started reading this line, the first step in actually seeing it took place. In the very first step of vision, the retinal chromophores in the rhodopsin proteins in your eyes were photo-excited and then driven through a conical intersection to form a trans isomer [1]. The conical intersection is the crucial part of the machinery that allows such ultrafast energy flow. Conical intersections (CIs) are the crossing points between two or more potential energy surfaces."
-- Adi Natan, Matthew R Ware, Vaibhav S. Prabhudesai, Uri Lev, Barry D. Bruner, Oded Heber, Philip H Bucksbaum
(Read Full Article: "Demonstration of Light Induced Conical Intersections in Diatomic Molecules" )

Thursday, May 05, 2005

Feynman on Commemorative Stamp


Richard P. Feynman, the late Nobel laureate and Caltech professor, is
widely regarded as one of the most influential physicists of the 20th
Century. Today United States Post Office has released a commemorative
stamp in honor of this great Physicist of 20th century.

Anyone interested in Modern Physics could never escape reading about
Feynman and his path-breaking works especially on Quantum
Electrodynamics and many other aspects of particle physics. The series
of lectures that he gave to Caltech undergraduates is celebrated as the
most comprehensive account of Modern Physics and if you have not yet
read his autobiography "Surely you are joking, Mr. Feynman" and a
sequel "What do you care what other people say", you must finish those
right now!

We cannot really describe Feynman, his work and his spectacular life in
two or three paragraphs of this posting. So, you may start with those books.Posted by Hello


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