This is an article I read last year that hasn't raised much attention:
http://www.eurekalert.org/pub_releas...-tpl043002.php
Tungsten photonic lattice changes heat to light
"...a microscopic tungsten lattice — in effect, a tungsten filament fabricated with an internal crystalline pattern — developed at the Department of Energy’s Sandia National Laboratories has been shown to have potential to transmute the majority of this wasted infrared energy (commonly called heat) into the frequencies of visible light.
This would raise the efficiency of an incandescent electric bulb from 5 percent to greater than 60 percent."
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If the technology can be successfully developed, the implications are enormous:
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* reduction in energy consumption
* reduction in polluting gasses and coal ash
* less reliance on nuclear energy
* lower energy costs
* fewer coal mines
* extended lifetime of fossil fuel resources
* etc., etc. etc.[/list](Not to mention lots of opportunity for new inventions and applications)