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2Physics Quote:
"Lasers are light sources with well-defined and well-manageable properties, making them an ideal tool for scientific research. Nevertheless, at some points the inherent (quasi-) monochromaticity of lasers is a drawback. Using a convenient converting phosphor can produce a broad spectrum but also results in a loss of the desired laser properties, in particular the high degree of directionality. To generate true white light while retaining this directionality, one can resort to nonlinear effects like soliton formation."
-- Nils W. Rosemann, Jens P. Eu├čner, Andreas Beyer, Stephan W. Koch, Kerstin Volz, Stefanie Dehnen, Sangam Chatterjee
(Read Full Article: "Nonlinear Medium for Efficient Steady-State Directional White-Light Generation"
)

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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