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there is a filiament made of tungsten (wolfram; Wg) which is a special metal which shines bright at high temperature, converting the energy into light instead of heat. electricity is hot, and tungsten does not melt at high temperature. Furthermore, the vacuum inside of the bulb stops the tungsten from breaking. When a bulb is "blown", it is when the tungsten has broken which comes after lots of use, and therefore breaks the circuit of electricity.

I think these bulbs are now illegal in western countries because of environmental hazards, and i have no idea how fluorescent or compact flourescent bulbs work let alone any other kind of bulb that exists now. but tungsten globes were what were light bulbs for many decades, and the ones which Thomas Edison started with.

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12y ago

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