The technology, system, or practice of creating and transmitting airgraphs, or visual graphics sent by air.
From 'airgraph' with the suffix '-ics' (denoting a field or system of practice). A specialized term from mid-20th century postal and military history.
Airgraphics was so efficient during wartime that it spawned modern microfilm and fax technology—you could say WWII postage invented the fax machine by accident.
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