More than a century after their invention, tungsten filaments—the coiled metal wires at the heart of many incandescent light bulbs—continue to be popular. This is despite the growing market for LED ...

Tungsten-filament bulbs — the most widely used light source in the world — burn hands if unscrewed while lit. The bulbs are infamous for generating more heat than light. Now a microscopic tungsten ...

As inventors in the early 1900s vied to devise the best incandescent lightbulb, tungsten won out over carbon for making filaments. Today, however, there’s a form of carbon that was unknown back ...

This month, let’s take a deeper look at one of the most ubiquitous forms of illumination in our world: tungsten or incandescent bulbs. Incandescent means light from heat, which also includes the light ...

Researchers at Sandia National Laboratories -- exceeding the predictions of a 100-year-old law of physics -- have shown that filaments fabricated of tungsten lattices emit remarkably more energy than ...

An energy-saving light bulb containing LEDs uses up to 80% less energy and lasts up to 25 times as long as a traditional incandescent bulb. There’s just one problem: many people think that the quality ...

PHOENIX -- Saying they were striking a blow for individual rights, a Senate panel voted Tuesday to keep old-fashioned tungsten-filament light bulbs legal in Arizona long after they're banned by ...

Jinquan Wei and colleagues from Tsinghua University and Bingqing Wei at Louisiana State University started by using chemical vapour deposition to make highly pure nanotubes. Next they soaked the ...

ALBUQUERQUE, N.M. -- You can't get something for nothing, physicists say, but sometimes a radical innovation can come close. Researchers at Sandia National Laboratories -- exceeding the predictions of ...