Why do your glasses fog up when the temperature shifts?
In short: This video explains the physics behind the condensation that obscures your vision. Discover how temperature discrepancies between the lenses and the surrounding air create the tiny water droplets known as fog.
Fogging occurs when atmospheric humidity condenses on a surface, such as glasses or goggles. This phenomenon is driven by a significant difference between the temperature of the lens and the air around it. As the surface seeks thermal equilibrium, it releases heat energy, causing gaseous water molecules to lose energy and transform into microscopic liquid droplets on the lens.
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Sources
- Summary by Intellect · source: How Does Anti-Fog Spray Work?
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