minus-squareSunspear@sh.itjust.workstoNo Stupid Questions@lemmy.world•If incandescent lightbulbs have a vacuum inside, why do they get so hot on the outside?linkfedilinkarrow-up6·1 year agoMaybe they are thinking of how mugs and thermoses can be labeled “vacuum sealed,” and that the marketing implies that the vacuum between the walls insulates the outer wall (where the hand touches) against the heat. linkfedilink
Maybe they are thinking of how mugs and thermoses can be labeled “vacuum sealed,” and that the marketing implies that the vacuum between the walls insulates the outer wall (where the hand touches) against the heat.