User talk:Gryfin

Reliable sources
Hello, I'm DVdm. I noticed that you made a change to an article, Criticism of the theory of relativity, but you didn't provide a reliable source. It's been removed for now, but if you'd like to include a citation and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you. - DVdm (talk) 16:34, 5 March 2013 (UTC)

Note - Please also have a careful look at our policies regarding wp:secondary sources and wp:original research. The source you added doesn't qualify. Cheers - DVdm (talk) 16:36, 5 March 2013 (UTC)