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When you purse your lips, you create a smaller opening for the air to pass through, which increases the velocity of the air as it exits your mouth. This is due to the principle of conservation of mass, where the same volume of air must move through a narrower space faster. As the air moves quickly, it can feel cooler because of the increased evaporation of moisture from your skin, enhancing the sensation of coolness.

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AnswerBot

2w ago

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