Atmospheric humidity - PowerPoint PPT Presentation

Atmospheric Humidity

Chapter 4. Atmospheric Humidity. Circulation of Water in the Atmosphere. A general definition of humidity is the amount of water vapor in the air. Remember, humidity is not constant through time or space, there is constant circulation of water through the hydrologic cycle. Stepped Art.

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PIEZOELECTRICS

PIEZOELECTRICS. - Swagata Mitra Majumdar. INTRODUCTION. Piezoelectricity from the Greek word &quot;piezo&quot; means pressure electricity. It is the property of certain crystalline substances to generate electrical charges on the application of mechanical stress.

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The thermometer

The thermometer. The thermometer is used to measure the temperature of the atmosphere. Since the temperature varies throughout the day, it is convenient to record the highest and lowest temperatures during each day.

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