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Italiano: Testa di un cigno reale (Cygnus olor) con gocce d'acqua ben visibili che ne dimostrano l'impermeabilità delle piume, dovuta a una una sostanza grassa secreta dalla ghiandola detta uropigio. Questa sostanza viene raccolta col becco e spalmata sul piumaggio per proteggerlo e renderlo impermeabile.
English: Head of a Mute Swan (Cygnus olor) with visible water drops that demonstrate the impermeability of the feathers, due to a fatty substance secreted by a gland called uropygial gland. This substance is collected and spread on the feathers with the beak, in order to protect them and make them waterproof.
English: Head of a Mute swan with visible impermeability of its feathers.
I, the copyright holder of this work, hereby publish it under the following license:
||This image was uploaded as part of European Science Photo Competition 2015.|
|Camera manufacturer||NIKON CORPORATION|
|Camera model||NIKON D3100|
|Orientation of image||1|
|Image resolution in width direction||72|
|Image resolution in height direction||72|
|Unit of X and Y resolution||2|
|Exposure time||10/2500 sec (0.004)|
|F number||f / 8|
|ISO speed rating||100|
|Compressed bits per pixel||4|
|Lens focal length||135 mm|
|Date and time original image was generated||2014:03:12 13:50:38|
|Date and time image was made digital data||2014:03:12 13:50:38|
|Meaning of each component|
|Maximum lens aperture||5.1|
|Supported Flashpix version||0100|
|Color space information||1|
|Exif image width||4608|
|Exif image length||3072|
|Digital zoom ratio||1|
|Focal length in 35 mm film||202 mm|
|Software used||QuickTime 7.6.6|
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