If you’re testing old stereo equipment, a dim bulb tester can really come in handy. It’s not for testing bulbs, though, it’s a tester that uses a dim bulb to test other things. [Nicholas Morganti] ...

They’re consistently popular with the readers, which is admittedly part of my (and EDN’s) motivation to continue doing them. But I personally also find them fascinating; inevitably I come across at ...

Editorial Note: Talk Android may contain affiliate links on some articles. If you make a purchase through these links, we will earn a commission at no extra cost to you. Learn more. To smarten your ...

I have occasionally read that incandescent light bulb filaments undergo metal electromigration that eventually causes the filament metal to part company with itself and open, blowing out the bulb. Let ...

Edison Light Bulb, 1879, Smithsonian's National Museum of American History Thomas Edison used this carbon-filament bulb in the first public demonstration of his most famous invention—the light bulb, ...