rdfs:comment | - Gilleland's invention was a failure. First tested on 22 April 1862, and aimed at a target of two upright poles, uneven combustion of the powder and casting imperfections in the barrels gave the connected balls a spinning movement in an off-center direction, with witnesses reporting that on its first firing it "plowed up about an acre of ground, tore up a cornfield, mowed down saplings, and then the chain broke, the two balls going in different directions."
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abstract | - Gilleland's invention was a failure. First tested on 22 April 1862, and aimed at a target of two upright poles, uneven combustion of the powder and casting imperfections in the barrels gave the connected balls a spinning movement in an off-center direction, with witnesses reporting that on its first firing it "plowed up about an acre of ground, tore up a cornfield, mowed down saplings, and then the chain broke, the two balls going in different directions." On its second firing the chain shot across the horizon and into a thicket of pine. "[The] thicket of young pines at which it was aimed looked as if a narrow cyclone or a giant mowing machine had passed through", reported another witness. On its third firing the chain snapped immediately and one ball tore into a nearby cabin, knocking down its chimney, the other spun off erratically and struck a nearby cow, killing it instantly. Gilleland considered the test-firings a success.
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