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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 ...

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 ...

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 ...