When airplane pilots are training, they spend many hours in flight simulators. These simulators give the students a chance to experience the challenges and dangers of flying an aircraft—but without the risk. The pilots don’t have to leave the ground, and if they crash in the simulation, they can calmly walk away.
via Our Daily Bread http://feedproxy.google.com/~r/odb/feed/~3/7W8nixhplS0/
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