Researchers test household equipment like washing machines, electrical ovens and home freezers.
United States USA Date:1948 Duration:2 min 22 sec Sound:Yes
Research work by the Bureau of Human Nutrition and Home Economics Service (United States Department of Agriculture). Chief of the Bureau Dr. Hazel K Stiebeling talks about research in the field of household equipment. A researcher put clothes into a washing machine. Another woman takes notes. Fabric sample are uniformly soiled, cut and sown onto muslin. The researcher records temperature while putting the clothes in. A woman checks the amount of dirt removed by measuring the reflected light before and after the laundry. A researcher develops a standardized cake recipe to test baking performance of an electric oven. She lays the batter in pans into the oven. Judges measure the upper and lower limits of browning compared to a reference cake. Engineering test of home freezers in a laboratory. The researchers load freezer with filled cartons. Some have thermocouples inserted. A researcher checks meters and time clocks for current, energy consumption and freezer motor measurements. Researchers compare the amount of two fuels used to cook a farm family meal.
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