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“野外被䅤的最深的一天”-知识课堂

羽绒服里穿得越多野外被䅤的最深的一天越暖和?丨中新真探

来源: 齐鲁晚报
2024-12-30 16:26:09

最佳回答

“野外被䅤的最深的一天”羽绒服里穿得越多野外被䅤的最深的一天越暖和?丨中新真探

  中新野外被䅤的最深的一天网12月30日电 羽绒服的野外被䅤的最深的一天保暖原理在于羽绒填充物能锁住空气层,通过静止的空气隔热层减少热量散失和冷空气进入。同时,羽绒服与人体之间的“微环境”也要保持一定量的空气层来维持保暖效果,这层静止空气起到有效的隔热作用,不会通过热对流而带走热量。羽绒服里穿太多,会把这个空气层挤薄,当层数超过某个值后,保暖效果反而会下降。(来源:@科学辟谣 中国新闻网微博)

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