@Epic2112@lemmy.world to No Stupid Questions@lemmy.world • edit-22 years agoIf incandescent lightbulbs have a vacuum inside, why do they get so hot on the outside?message-square19fedilinkarrow-up172arrow-down12file-text
arrow-up170arrow-down1message-squareIf incandescent lightbulbs have a vacuum inside, why do they get so hot on the outside?@Epic2112@lemmy.world to No Stupid Questions@lemmy.world • edit-22 years agomessage-square19fedilinkfile-text
minus-square@Archpawn@lemmy.worldlinkfedilink7•2 years agoIn addition to what others have said, they’re not a vacuum inside. They’re filled with 0.7 atm of argon gas. That would slow the transfer of heat, but there’d still be plenty of heat transfer through convection.
In addition to what others have said, they’re not a vacuum inside. They’re filled with 0.7 atm of argon gas. That would slow the transfer of heat, but there’d still be plenty of heat transfer through convection.
Why not 1 atm?