'Chicagoans seek heat relief as mercury mounts '. People in swimsuits on the beach at Lake Michigan in Chicago. Men and women crowd the beach. Skyscrapers of Chicago are seen from the background. Children enjoy a shower as a fireman sprays them with a hose. Children holding each other while dancing in the shower.
' Back to weather forecasting ' . A boy along with his father visits weather bureau and the chief of the bureau acquaints him with the importance and method of forecasting weather. Scientific instruments used to forecast weather. Weather bureau in Richmond, Virginia.
Scientific instruments used for weather forecast. Wind vane shows the direction of wind blow. An anemometer indicates speed of the wind.
Scientific instruments used for weather forecast. Thermometers used to record maximum and minimum temperatures. A man notes down the temperatures. Wet and dry bulbs of thermometers used to record humidity level.
Scientific instruments used for weather forecast at a weather bureau in United States. A man uses a barometer to record atmospheric pressure.
Scientific instruments used for weather forecast at a weather bureau in United States. A thermograph shows an increase and decrease in the temperature.
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