Everyday Thermodynamics: Why Your Coffee Cools Faster in a Ceramic Mug Than a Vacuum Flask

日常热力学：为何咖啡在陶瓷杯中比真空保温杯里冷得更快

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Ceramic mugs transfer heat rapidly to ambient air through conduction and convection, unlike vacuum-insulated flasks with near-zero thermal bridging.
The surface roughness and porosity of unglazed ceramic increase effective contact area for heat exchange with surrounding molecules.

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