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Tapering Waveguide Captures a Rainbow
SubComdTaco passes along news of researchers in the US who have trapped a rainbow in a tapering waveguide. The research is described (PDF) on the arXiv. "In 2007, Ortwin Hess of the University of Surrey in Guildford, UK, and colleagues proposed a technique to trap light inside a tapering waveguide [made of metamaterials]... The idea is that as the waveguide tapers, the components of the light are made to stop in turn at ever narrower points. That's because any given component of the light cannot pass through an opening that's smaller than its wavelength. This leads to a 'trapped rainbow.' ... Now Vera Smolyaninova of Towson University in Baltimore, Maryland, and colleagues have used a convex lens to create the tapered waveguide and trap a rainbow of light. They coated one side of a 4.5-mm-diameter lens with a gold film..., and laid the lens — gold-side down — on a flat glass slide which was also coated with film of gold. Viewed side-on, the space between the curved lens and the flat slide was a layer of air that narrowed to zero thickness where the lens touched the slide — essentially a tapered waveguide. When they shone a multi-wavelength laser beam at the... gilded waveguide, a trapped rainbow formed inside. This could be seen as a series of colored rings when the lens was viewed from above with a microscope: the visible light leaked through the thin gold film."
Grigory Perelman won the Fields Medal in 2006. (In 2002, he proved the Poincare Conjecture.)
Now, Vera Smolyaninova had made a major advance in optical science.
Why have the Russians accomplished so much in science and mathematics?
On the other hand, why have the Africans (and African-Americans) accomplished almost nothing in science and mathematics? Africans seem to lack the ability to process advanced mathematics, which is a characteristic of all Russian accomplishments in physics.
Does the fact that African IQ is about 20 points less than Russian IQ (and Japanese IQ) explain African failure in science and mathematics and also African failure in creating a modern, first-world society?
Grigory Perelman won the Fields Medal in 2006. (In 2002, he proved the Poincare Conjecture.)
Now, Vera Smolyaninova had made a major advance in optical physics.
Why have the Russians accomplished so much in science and mathematics?
On the other hand, why have the Africans (and African-Americans) accomplished almost nothing in science and mathematics? Africans seem to lack the ability to process advanced mathematics, which is a characteristic of all Russian accomplishments in physics.
Does the fact that African IQ is about 20 points less than Russian IQ (and Japanese IQ) explain African failure in science and mathematics and also African failure in creating a modern, first-world society?
No, but the fact they have bigger dicks, and that makes you feel *so* inferior is compensation enough.
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