Paraboloid

Title (Dublin Core): Paraboloid
Subject (Dublin Core): en Technology; en Anti-aircraft
Article Title and/or Image Caption (Dublin Core): Title: Locating Airplane in Night Fighting; Caption: Here Is the "Paraboloid"—the Clever Sound Focusing and Detecting Device Used by the Allied Armies in Locating Enemy Aircraft While They Were Yet Several Miles Away. The Sound of the Airplane Engine Carried Far, and by Carefully Focusing the Collected Sounds and oncentrating Them onto a Sensitive Microphone, the Trick was Done.
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): World War I
Date Issued (Dublin Core): 1919-08
Is Part Of (Dublin Core): Electrical Experimenter, v. 7, n. 4, 1919
pages (Bibliographic Ontology): 310
Rights (Dublin Core): Public domain
Archived by (Dublin Core): Mikhail Vsemirnov