Bacon, Gertrude, 1874-1949 · London ; New York ; Toronto ; Melbourne : Cassell and Company · leaf 35
Typical Kites 20 HOW MEN FLY to itself, which means, In this case, that it will rise at anangle into the air. A little diagram will make this clear: … Here A b represents a surface inclined at an angle tothe horizon, while the line a b indicates the direction inwhich the wind is blowing; then b c, drawn at rightangles to A b, is the direction in which the surface willmove under the influence of the winds force. The principle that the pressure…
Juvenile literature · Aeronautics · Airplanes
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