File:HE2G13.jpg
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HE2G13.jpg (327 × 432 pixels, file size: 52 KB, MIME type: image/jpeg)
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Summary
DescriptionHE2G13.jpg |
English: Cornu helicopter. Paul Cornu in his first helicopter in 1907. Note that he is sitting between the two rotors, which rotated in opposite directions to cancel torque. This helicopter was the first flying machine to have risen from the ground using rotor blades instead of wings. |
Date |
circa 1907 date QS:P,+1907-00-00T00:00:00Z/9,P1480,Q5727902 |
Source | The U.S. Centennial of Flight Commission |
Author |
UnknownUnknown © 2001 Smithsonian Institution, National Air and Space Museum, Videodisc. 2B 5847 |
Permission (Reusing this file) |
PD-USGov |
Licensing
Public domainPublic domainfalsefalse |
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Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2007-01-04 21:10 Signaleer 327×432× (47053 bytes) Paul Cornu in his first helicopter in 1907. Note that he is sitting between the two rotors, which rotated in opposite directions to cancel torque. This helicopter was the first flying machine to have risen from the ground using rotor blades instead of win
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:18, 16 September 2018 | ![]() | 327 × 432 (52 KB) | WikiPedant | adjusted levels |
09:13, 8 February 2010 | ![]() | 327 × 432 (46 KB) | File Upload Bot (Magnus Manske) | {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|''no original description''}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia]; transfer |
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