Maneuvering Loads and the V-n Diagram. The V-n, velocity-versus-load diagram, Figure 1, describes the relationship between an aircraftâs. speed, its longitudinal (pitch axis) maneuvering. capability, and its structural strength. The. positive-g, maximum lift line indicates how. aggressively, at any airspeed, we can apply aft.
Fairbanks, Alaska. During the early 19th century, some of the best scientific minds of the period believed that the aurora was caused by the reflection of sunlight from tiny ice crystals suspended high in the atmosphere.
Aurora Borealis   The Aurora Borealis is a display of colored lights in the sky, also called northern lights, caused by the interaction of particles from the sun with the â¦ upper atmosphere near the North Pole. A similar display, called the Aurora Australis, occurs in the atmosphere above the South Pole.