30

Stories about: incandescence

How Halogen Lamps Work Halogen light bulbs are incandescent lamps with construction and operation roughly similar to the classical light bulbs. They are generally much smaller than their 'cousins', have increased lifetimes and are able to produce high light outputs with elevated color temperatures, as opposed to all other types o... 30 July 2008 09:09 GMT LED Lighting Standards Tuned for Energy Conservation Most of the modern light sources today are still represented by incandescent light bulbs, which haven't evolved a great deal ever since they were first invented. Basically, typical incandescent light bulbs have a less than 10 percent efficiency, the remaining 90 percent of energy being dissipated in the surround... 1 July 2008 09:41 GMT How Gas Lanterns Work Well, today we have a great deal of electrically powered devices acting as light sources, but what if we didn't have electricity or if you were to go on a camping trip, what then? As far as I know, not many trees in the woods come with an outlet. One could use a gas lantern to light up one's path in the dar... 13 June 2008 08:54 GMT