Balloons used to test air currents during the training of gunners

Title (Dublin Core): Balloons used to test air currents during the training of gunners
Subject (Dublin Core): en Technology; en Artillery (and shells); en Other
Article Title and/or Image Caption (Dublin Core): Will That Shell Hit the Mark? It Depends on the Wind
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): Interwar period
Date Issued (Dublin Core): 1939-01
Is Part Of (Dublin Core): Popular Science Monthly, v. 94, n. 1, 1919
pages (Bibliographic Ontology): 15
Rights (Dublin Core): Public domain (Google digitized)
Source (Dublin Core): Google Books
Archived by (Dublin Core): Davide Donà; Marco Bortolami (editor)
Spatial Coverage (Dublin Core): United States of America