Epic2112@lemmy.world to

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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Tylerdurdon@lemmy.world
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2 years ago
Wow, I fucking learned something today. Thank you, stranger.
- FiskFisk33@lemmy.world
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  2 years ago
  very closely related:
  
  https://en.m.wikipedia.org/wiki/Black-body_radiation
- Mr_Blott@lemmy.world
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  2 years ago
  Go see what happens if you lick a radio transmitter aerial and report back

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