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Résumé |
Amazing demonstrations of the terrific force of dust explosions are made by the chemical engineering experts of the United States Department of Agriculture at the Arlington Experimental station, in an attempt to study the causes of the frequent catastrophes of a similar nature in industrial establishments. Powdered wheat, starch and cork are used as “charges,” detonated by an electric spark. Impounded in a structure representing a grain elevator or a factory, the “discharge” blows out windows and doors and gives vivid evidence of the danger lurking in pulverized vegetable matter. There are 28,000 plants in this country employing more than a million persons, where this hazard exists. The spectacular government tests seek to eliminate this menace. |
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