Wednesday, June 24, 2009

Convection: Example 1



The wind we feel outside is often the result of convection currents. You can understand this by the winds you feel near an ocean. Warm air is lighter than cold air and so it rises. During the daytime, cool air over water moves to replace the air rising up as the land warms the air over it. During the nighttime, the directions change - the surface of the water is sometimes warmer and the land is cooler.

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