No Stupid Questions • 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?

No Stupid Questions • 2 years ago

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

Chat

@Tylerdurdon
link
9•2 years ago
Wow, I fucking learned something today. Thank you, stranger.
- @FiskFisk33
  link
  4•2 years ago
  very closely related:
  
  https://en.m.wikipedia.org/wiki/Black-body_radiation
- @Mr_Blott
  link
  2•
  edit-2
  2 years ago
  Go see what happens if you lick a radio transmitter aerial and report back

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