Epic2112@lemmy.world to No Stupid Questions@lemmy.world · edit-21 year agoIf incandescent lightbulbs have a vacuum inside, why do they get so hot on the outside?message-squaremessage-square56fedilinkarrow-up1116arrow-down14file-text
arrow-up1112arrow-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-21 year agomessage-square56fedilinkfile-text
minus-squareAnUnusualRelic@lemmy.worldlinkfedilinkarrow-up8arrow-down1·1 year agoThere no longer is a vacuum in bulbs, but there was for a very long time.
minus-squareTonyTonyChopper@mander.xyzlinkfedilinkarrow-up9·1 year ago“Halogen” bulbs are just incandescent bulbs filled with inert gas and a small amount of bromine or iodine. Very interesting chemistry https://en.wikipedia.org/wiki/Halogen_lamp
There no longer is a vacuum in bulbs, but there was for a very long time.
“Halogen” bulbs are just incandescent bulbs filled with inert gas and a small amount of bromine or iodine. Very interesting chemistry https://en.wikipedia.org/wiki/Halogen_lamp