Friday, May 1, 2009
DON'T LAUGH, HARRY POTTER
At last engineers and scientists are nearing creating a true invisible cloak. "Getting the best material (not metal) to refract the light properly has been difficult."
"One of the research teams describes its miniature "carpet cloak" in the journal Nature Materials.
This "carpet" design was based on a theory first described by John Pendry, from Imperial College London, in 2008.
Michal Lipson and her team at Cornell University demonstrated a cloak based on the concept.
Xiang Zhang, professor of mechanical engineering at the University of California, Berkeley, led the other team.
"Essentially, we are transforming a straight line of light into a curved line around the cloak, so you don't perceive any change in its pathway," he explained."
Daniel Sieberg, CBS News, offers this explanation of the future.
Of course, I am left wondering how the future will get around several obstacles I foresee. Pheromones cannot be obscured by light waves, can they? What about the after-breath of a heavily seasoned garlic meal? The flatulent, anxious, tense individual who wants to be hidden? Clearly, the scenario cannot be a one-size-fits-all. One day, when all those alive today are long gone, a visitor from the future might not be so quickly impressed, but the facts will be there to be viewed....won't they?
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