#10 The Physics of a Thermos: How a Vacuum Flask Really Works

from Curiosity Fuel - Daily stories. Five-minute facts · host Curiosity Studios

It's a silent hero of our daily lives, keeping drinks hot or cold for hours without any power. But how does a thermos, or vacuum flask, actually work? This episode explores the brilliant physics inside this simple container, explaining how it masterfully defeats all three types of heat transfer to create a fortress of insulation.

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This episode was published on August 19, 2025.

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