File:Bur Macro BlackBg.jpg

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Original file ‎(2,184 × 1,760 pixels, file size: 425 KB, MIME type: image/jpeg)

Captions

Captions

A close-up of a burr that shows the detail of its hooks, which are long tendrils that extend from the round body and taper off into very small curls. "Tweet 'cause they Twitter - Fleeting moment".

Summary[edit]

Description
English: A burr. This fruit attaches to animal fur via the hooks on its surface to improve distribution. Velcro is an example of a biomimetic invention which has copied burrs and uses small flexible hooks to reversibly attach to fluffy surfaces.
Français : Le velcro est inspiré de plantes disposant de propagules munis de crochets menus et souples comme ici la « benoite commune » (Geum urbanum). Mais d'autres plantes produisent des crochets plus grands et plus durs (ex: bardane). Ces crochets leurs permettent de faire transporter leurs graines par des animaux (ou nos vêtements)
Date
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Author Zephyris
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(Reusing this file)		 See below. For information about commercial use please contact me via my website.

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Date/TimeThumbnailDimensionsUserComment
current04:31, 23 April 2011Thumbnail for version as of 04:31, 23 April 20112,184 × 1,760 (425 KB)Materialscientist (talk | contribs)crop whitespace
23:20, 4 July 2010Thumbnail for version as of 23:20, 4 July 20104,272 × 2,848 (1.43 MB)Zephyris (talk | contribs){{Information |Description={{en|1=A bur. This fruit attatches to animal fur via the hooks on its surface to improve distribution. Velcro is an example of a biomimetic invention which has copied burs and uses small flexible hooks to reversibly attatch to f

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