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?
Fire is a chemical reaction. Oily rags and compost can self combust.
Also, earth is the only known planet where fire can burn.