Is a lighter effective because it’s on fire? Or just because it’s hot?
If you made a lighter that was just as hot as another lighter, would it work just as well even if it had no fire?
Is a lighter effective because it’s on fire? Or just because it’s hot?
If you made a lighter that was just as hot as another lighter, would it work just as well even if it had no fire?
Cars used to come with non-fire cigarette lighters as a safety measure.
https://en.m.wikipedia.org/wiki/Automobile_auxiliary_power_outlet