aerography การใช้

• Finally, Air Technical Training Command trained enlisted men for support jobs in aviation such as maintenance, engineering, aerography, and parachute operations.
• The naval aviation training program at MIT was expanded to include an aerography school training 54 weather forecasters, and an inspector's school training 114 airplane inspectors and 58 engine inspectors to oversee quality control of newly manufactured aviation material.
• A related technique ( which has found applicability in some aerography, in which spray-painting is done " around " a three-dimensional object to create a negative of the object instead of a positive of a stencil design.
• Following Heinrich Hertz's establishment of the existence of electromagnetic radiation in the late 1880s, a variety of terms were initially used for the phenomenon, with early descriptions of the radiation itself including " Hertzian waves ", " electric waves ", and " ether waves ", while phrases describing its use in communications included " spark telegraphy ", " space telegraphy ", " aerography " and, eventually and most commonly, " wireless telegraphy ".