Dennis Kunkle spotted an interesting light bulb glowing dimly in the basement of the Fire Museum of York County on West Market Street ... filaments. Carbon filaments were replaced with tungsten ...

Street lighting can have this same effect ... It’s designed specifically for light that comes off the tungsten filament of an incandescent bulb. However, the CT rating does not reliably measure ...

you have to go a long way these days to find something that still uses a tungsten filament. Strangely enough, this lamp-stabilized LM386 Wien bridge oscillator is one place where an incandescent ...

Light bulbs are living on borrowed time, but why do their timers tend to expire just as you turn on a light, instead of flickering out randomly? Everyone has had the experience of coming home from ...

The light bulb, originally refined (although not invented) by Thomas Edison, features a base (traditionally a medium screw base), two electrodes, a filament coil (most commonly of tungsten) and a ...

IT has been known for a long time that perfectly pure tungsten cannot be used for the manufacture of filaments for electric lamps on account of its “off-setting” structure due to ...