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No Stupid Questions@lemmy.world • 2 years ago

If incandescent lightbulbs have a vacuum inside, why do they get so hot on the outside?

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If incandescent lightbulbs have a vacuum inside, why do they get so hot on the outside?

@Epic2112@lemmy.world to

No Stupid Questions@lemmy.world • 2 years ago

Shouldn’t the vacuum insulate the glass from the heat of the burning filament?

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16•2 years ago
3 forms of heat transfer

Conduction. Transfer of heat from one medium to another.

Convection. Transfer of heat within the same medium.

Radiation. Non-contact transfer of heat.

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