An artificial avalanche is caused by mortar fire in the United States.
United States USA Date:1943 Duration:5 min 59 sec Sound:Yes
A film depicts the causes of avalanches. Mountainous region in the United States. Snow covered mountains. A chart depicts observations and a diagram. Soldiers advancing on the mountainous area with the help of skies. They carry a mortar with them to cause an artificial avalanche. They place the mortar after removing the surface snow. The mortar is adjusted and inspected. The observer watching the slope to be fired through binoculars. The mortar is loaded and fired. The shells explode and the slope snow tumbles down. A man watching through binoculars. More shells are fired and the artificial avalanche occurs.
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