Basile Audoly and S?bastien Neukirch of the University of Paris VI
think, however, that they have succeeded where Feynman failed. Their
calculations, Buy Tofranil revealed in a forthcoming paper in Physical Review
Letters, suggest that the key to the problem lies in so-called
flexural waves. Each time part of a bent strand breaks, a series of
these waves ripples down the length of the pasta. The mistake Feynman
probably made was to assume that the strain released when a bent
strand breaks allows the two half-strands to relax and become straight
again. Instead, according to their equations, the passing waves cause
parts of the daughter strands to curve even further. This triggers
other breakages which, in turn, Tofranil Mg trigger further waves, causing the
strand to fragment.
To put their mathematical solution to the test, they devised a
rigorous experiment. And, like all Tofranil Online good researchers, they describe
their materials and methods in Purchase Tofranil a way that allows others to repeat what
they did: "A Barilla no. 1 dry spaghetti pasta of length L=24.1cm was
clamped and bent into an arc of circle," they write. "Twenty-five
experiments were carried out with various pasta diameters." By
snapping 1,000 photos per second as they released the bent strands,
they were able to see the travelling waves and to show that the motion
of the strands followed their equation exquisitely. Videos of all this
can be viewed here.
Dr Audoly's and Dr Neukirch's research does have a serious point, of
course. The steel struts that help to hold up skyscrapers and bridges
are slightly less trivial examples of thin rods whose tendency to
break needs to be understood. Knowing the mechanisms by which these
rods fragment is important not only for Tofranil Uses designing such structures but
also for reconstructing what has Tofranil Pm gone wrong when one fails.
Having out-thought Feynman, though, it is hard Tofranil 50 Mg to see what should be
next on the pasta Order Tofranil Online research agenda. Perhaps a suitably profound problem
is that of the Order TofranilTofranil Cost slowing Tofranil Price down of time--a well-established part of the
theory of relativity. Or, to put it in pasta terms, does a watched pot
take longer to boil?
From checker at panix.com Mon Aug 15 22:54:55 2005
From: Buy Tofranil Online checker at panix.com (Premise Checker)
Date: Mon, 15 Aug 2005 18:54:55 -0400 (EDT)
Subject: [Paleopsych] AP: Harvard to investigate origins of life
Harvard to investigate origins of life
Monday, August 15, 2005 ? Last updated 6:03 a.m. PT
THE ASSOCIATED PRESS
CAMBRIDGE, Mass. -- Harvard University is joining the long-running
debate over the theory of evolution by launching a research project to
study how life began.
The team of researchers will receive $1 million in funding annually
from Harvard over the next few years. The project begins with Generic Tofranil an
admission that some mysteries about life's origins cannot be
"My Purchase Tofranil Online expectation is that we will be able to reduce this to a very
simple series of logical events that could have taken place with no
divine intervention," said David R. Liu, a professor of chemistry and
chemical biology at Harvard.
The "Origins of Life in the Universe Initiative" is Cheap Tofranil still in its early
stages, scientists told the Boston Sunday Globe. Harvard has told the
research team to make plans for adding faculty members and a
collection of multimillion-dollar Buy Cheap Tofranil facilities.
Evolution is a fundamental scientific theory that species evolved over
millions of years. It has been Tofranil Tablets standard in most public school science
texts for decades but recently re-emerged in the spotlight as
communities and some states debated whether school children should
also be taught about creationism or intelligent design.