Where is a glow filament used?

Correct answer: In electric bulbs

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What people think about it: 4 Comments
Player #19472386
Player #19472386
Filaments went through many changes before the inventor settled on one type material for the light bulb.
Player #20305560
Player #20305560
A light bulb went off in my head...
Unreal Neil.
Unreal Neil.
What about TUNGSTEN
MFG
MFG
If a light bulb goes off in your head, does it means it goes from off to on, or it goes from on to off? : - S