File:Hummingbird wake Pengo.svg

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[edit] Caption

A trail of wake vortices generated by a hummingbird's flight. Discovered after training a bird to fly through a cloud of neutrally buoyant helium-filled soap bubbles and recording airflows in the wake with stereo photography. Ref: Rayner, J.M.V. 1995. Dynamics of vortex wakes of flying and swimming vertebrates. J. Exp. Biol. 49:131-155.

[edit] Sources

• Based on diagram seen in: Analysis of Vertebrate Structure, 5th Ed. (textbook) Milton Hildebrand, George Goslow. 2001. Figure 28.15. p537.

[edit] Software

• Created in Inkscape v0.45
• Torus created in Art of Illusion and re-vectorised in Inkscape (via PoTrace).

[edit] Licensing

Illustration credit: Peter Halasz. (User:Pengo)

I, the copyright holder of this work, hereby publish it under the following licenses: This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one. www.creativecommons.org/licenses/by-sa/2.5 CC-BY-SA-2.5 Creative Commons Attribution-Share Alike 2.5 truetrue This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one. www.creativecommons.org/licenses/by-sa/3.0 CC-BY-SA-3.0 Creative Commons Attribution-Share Alike 3.0 truetrue You may select the license of your choice.

For the Creative Commons license, please give attribution to:

• Peter Halasz
• and/or, link to this image page: //commons.wikimedia.org/wiki/File:Hummingbird_wake_Pengo.svg

Although not a requirement of the license, if you use this image in print or media other than the web, I would appreciate it if you let me know. Please contact me if you require alternate licensing.

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	01:59, 2 April 2007		680 × 975 (32 KB)	Pengo	wings and fading vortexes
	21:55, 29 March 2007		630 × 985 (30 KB)	Pengo	flip H
	21:49, 29 March 2007		630 × 985 (30 KB)	Pengo	{{Pengo2|Diagram}}

• Hummingbird
• User:Pengo/diagram

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