當碗底有凹槽時,碗中熱湯水氣化後的分子會往向凹槽空間散發,使得碗底空氣熱膨脹而產生壓力,此時,只要碗底或桌面有些許水份提供氣密性和潤滑,再加上桌面有些微傾斜,碗就會形成氣墊船的效果,自動往較低處滑行。
不過,一旦滑動至新接觸的桌面,桌面將重新吸收熱量使得碗底空氣冷卻,碗就會立刻停住。
當碗底有凹槽時,碗中熱湯水氣化後的分子會往向凹槽空間散發,使得碗底空氣熱膨脹而產生壓力,此時,只要碗底或桌面有些許水份提供氣密性和潤滑,再加上桌面有些微傾斜,碗就會形成氣墊船的效果,自動往較低處滑行。
不過,一旦滑動至新接觸的桌面,桌面將重新吸收熱量使得碗底空氣冷卻,碗就會立刻停住。
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