File:Aerial Flight, vol. 1 pg. 274 fig. 115.jpg
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Summary
| Description |
English: A dragon-fly weighed and measured from a planimeter measurement of the whole wing surface, of 0.68 grammes on 3.5 square inches, which is 0.062 pounds per square foot. |
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| Date | published 1906 | ||||||||||||||||||||
| Source | Aerial Flight (1906), vol. 1, pg. 274. | ||||||||||||||||||||
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Licensing
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:36, 1 December 2020 | | 900 × 650 (102 KB) | Francois-Pier | Uploaded a work by {{Creator:Frederick W. Lanchester}} from Aerial Flight (1906), vol. 1, pg. 274. with UploadWizard |
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