The Leidenfrost effect is a physical phenomenon in which a liquid, when near to a significantly hotter surface than the liquid's boiling point, produces an insulating vapor layer keeping that liquid from boiling rapidly. Due to this pressure of the vapor layer acting as a "repulsive force", the liquid hovers over the surface rather than making physical contact with it, a phenomenon referred to as "vapor film pressure" or "vapor cushion". This phenomenon is most commonly observed when cooking...
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