Another commonly received axiom was that no body could be affected by more than one movement at one time, and it was thus supposed that a cannon ball, or other projectile, moves forward in a right line until its first impulse is exhausted, when it falls vertically to the ground.
Nearly 100 kilometers from the nearest city - amid rolling hills of grazing cattle - Cannon Ball, North Dakota, with a population of less than a 1,000 people, is an unlikely place for a presidential visit
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