What makes a halogen light work?
You, when you turn it on. Aright, there’s more to it. Like the light bulbs with which we are more familiar, halogen lamps have a tungsten filament that’s heated until it’s white hot. But the similarity ends there. Frosted glass surrounds the filament in the average bulb. It also encases it, typically, in a gas such as nitrogen or argon. The current generates enough heat to vaporize the tungsten, depositing a residue on the glass. The filament eventually develops a thin spot and breaks. In halogen lamps, one of the halogen gasses surrounds the filament. These gases combine with tungsten vapor, redepositing it on the filament and extending its life. Quartz replaces glass in the halogen bulb. It can be placed closer to the filament, making these bulbs hotter as well as smaller and more long lasting than the average bulb. There’s you’re excuse: the bulb melted your homework. Source: www.howstuffworks.com Great Expectorations How do you avoid getting drunk in the tasting room on a winery to
