This image was created by Chris 73. The image is licensed under a dual license; please choose either of the two licenses below as desired. Attribution to Wikipedia or another project of the Wikimedia foundation is required for both licenses if the image is used outside of projects of the Wikimedia foundation. Attribution to me is not required.

Tilladelse er givet til at kopiere, distribuere og/eller ændre dette billede under betingelserne i GNU Free Documentation License, Version 1.3 eller enhver senere version udgivet af Free Software Foundation; uden invariante afsnit, forsidetekster, samt bagsidetekster. En kopi af licensen er inkluderet i sektionen benævnt GNU Free Documentation License. www.gnu.org/licenses/fdl-1.3.htmlGFDL 1.3GNU Free Documentation License 1.3truetrue

Denne fil er udgivet under Creative Commons Kreditering-Del på samme vilkår 3.0 Ikke-porteret-licensen.

Kreditering: Chris 73 / Wikimedia Commons

Du må frit:

• at dele – at kopiere, distribuere og overføre værket
• at remixe – at tilpasse værket

Under følgende vilkår:

• kreditering – Du skal give passende kreditering, angive et link til licensen, og oplyse om der er foretaget ændringer. Du må gøre det på enhver fornuftig måde, men ikke på en måde der antyder at licensgiveren godkender dig eller din anvendelse.
• deling på samme vilkår – Hvis du bearbejder, ændrer eller bygger videre på dette værk, skal du distribuere dine bidrag under den samme eller en kompatibel licens som originalen.

https://creativecommons.org/licenses/by-sa/3.0CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue

"I want to use the image. How do I do that?"

You can use this image freely for any purpose, including commercial use, provided that you license it under one of the above licenses. My suggestion is to use the following text:

This Wikipedia and Wikimedia Commons image is from the user Chris 73 and is freely available at //commons.wikimedia.org/wiki/File:NautilusCutawayLogarithmicSpiral.jpg under the creative commons cc-by-sa 3.0 license.

For privacy reasons please use only "Chris 73" as author. If necessary, please translate the text in your language. For electronic use please include the links in the text as shown, for printed use please print the text as shown. If you use the image I would appreciate it if you would let me know on my talk page, but this is not required as long as you follow one of the above licenses.