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General Science / Fan by Hand
« on: 10/03/2008 06:10:20 »
While watching someone fan themselves with sheets of paper earlier on this rather warm day, I came to wonder:
Does the amount of heat you might lose from fanning yourself actually outweigh the extra heat you would generate from constantly moving your arm back and forth in doing the fanning? And if I wanted to fan myself as efficiently as possible, what dimensions would I want my fan to be, at what rate would I move my arm...etc?
Does the amount of heat you might lose from fanning yourself actually outweigh the extra heat you would generate from constantly moving your arm back and forth in doing the fanning? And if I wanted to fan myself as efficiently as possible, what dimensions would I want my fan to be, at what rate would I move my arm...etc?