Twotall

Corrected entry: While at the saucer near the North Pole, you never once see the men's breath from the cold. (00:20:45)

Larry Koehn

Correction: That's because visible breath is NOT solely due to cold, but to air humidity. If the air is dry, it does not matter how cold it is, breath will not be visible.

Twotall

The last statement of the correction is incorrect, and there's a misunderstanding of the role humidity plays. If the relative humidity of the air and your breath combined is 100%, you'll see your breath. There are two ways to affect relative humidity, higher humidity or lower temperature. Thus, at a certain temperature (usually below 45°F), you'll always see your breath, no matter the humidity.

Bishop73

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