At what altitude is the Karman line typically defined in the context of spaceflight?
Answer
100 kilometers
The Karman line is the internationally accepted boundary that distinguishes the atmosphere of Earth from outer space. It is established at an altitude of 100 kilometers above mean sea level. This designation is crucial in aerospace engineering and international law because it marks the point where the air is too thin to provide enough aerodynamic lift for conventional aircraft flight, effectively requiring vehicles to rely on orbital velocity rather than aerodynamic surfaces to remain aloft.
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