User talk:Cattlecall1

Sources and original research
Welcome to Wikipedia. Everyone is welcome to contribute to the encyclopedia, but when you add or change content, as you did to the article Relativistic Doppler effect, please cite a reliable source for the content of your edit. This helps maintain our policy of verifiability. See Citing sources for how to cite sources, and the welcome page to learn more about contributing to this encyclopedia. Thank you. - DVdm (talk) 21:12, 25 February 2011 (UTC)

Please do not add or change content without verifying it by citing reliable sources, as you did to Relativistic Doppler effect. Before making any potentially controversial edits, it is recommended that you discuss them first on the article's talk page. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. - DVdm (talk) 22:42, 25 February 2011 (UTC)


 * I am mystified by your behavior. The edit I've made, removing an unsourced statement, is not controversial as far as I know.  Anyone can go to the so-called source for that statement and verify for themselves that no such statement is made. If you really believe that refraction is outside the domain of special relativity, you should have no trouble finding a reputable source for that statement.  If you can find a source, I have no problem including that statement in the article.  I just happen to think it unlikely that you can find such a source, because it would contradict the foundation of modern science.Cattlecall1 (talk) 23:28, 25 February 2011 (UTC)


 * Read wp:BURDEN. Also watch out for wp:3RR. You are gettting close. DVdm (talk) 23:50, 25 February 2011 (UTC)