...scientists at the Massachusetts Institute of Technology (MIT) have come up with a technological breakthrough that could make incandescent bulbs twice as energy-efficient as their replacements. MIT researchers discovered that by wrapping the filament of an incandescent bulb with a "photonic crystal," they could "recycle" the energy that was typically lost as heat to create more light... "The heat just keeps bouncing back in toward the filament until it finally ends up as visible light," MIT post-doctoral researcher Ognjen Ilic explained. "It reduces the energy that would otherwise be wasted."In that case, it should run cooler.
IOW, IT’S A LASER!..............................