Development
The development of the M18A1 mine dates back to work done during World War II. The Misznay-Schardin effect was independently discovered during World War II by Misznay, a Hungarian, and Dr. Hubert Schardin, a German. When a sheet of explosive detonates in contact with a heavy backing surface (for example, a metal plate), the resulting blast is primarily directed away from the surface in a single direction. Schardin spent some time developing the discovery as a side-attack anti-tank weapon, but development was incomplete at the end of the war. Schardin also spent time researching a "trench mine" that used a directional fragmentation effect.
Read more about this topic: M18 Claymore Mine
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—Henry David Thoreau (1817–1862)
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—Frances Ellen Watkins Harper (1825–1911)