How Weather Instruments Work - Lesson 3 Hygrometers
Tuesday July 17, 2007
In the third installment of the Weather instruments series, hygrometers are explained. These simple instruments are easy to use and understand. In fact, you may have one attached to your head right now! Believe it or not, hair is a "scientific" instrument! In fact hair hygrometers have been around for centuries. Read the full story on hygrometers...
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