This effect was studied and experimented with by explosive experts Misznay, a Hungarian, and Dr. Hubert Schardin, a German, who initially sought to develop a more effective anti-tank mine for Nazi Germany. World War II ended before before their design became usable, but they and others continued their work. The United States' Claymore mine relies on the Misznay-Schardin effect.
Compare to the Monroe effect.
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