Description of derivograph, an apparatus which indicates direction, corrected for wind, to follow in order to reach a certain place by flight in a straight line. (See also Aeronautique vol. 2, no. 18, Dec. 1920 pp. 227-232, 23 figs)
Route indicator
Aufsatz (Zeitschrift)
Engineering Index Backfile | 1920
|Drivers' Perception of Route Alternatives as Indicator for the Indifference Band
Transportation Research Record | 2013
|Drivers' Perception of Route Alternatives as Indicator for the Indifference Band
Online Contents | 2013
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