User talk:F.black

Welcome to Wikipedia. It might not have been your intention, but your recent edit removed content from Wikipedia. When removing content, please specify a reason in the edit summary and discuss edits that are likely to be controversial on the article's talk page. If this was a mistake, don't worry; the content has been restored, as you can see from the page history. Take a look at the welcome page to learn more about contributing to this encyclopedia, and if you would like to experiment, please use the sandbox. Thank you. Materialscientist (talk) 22:23, 22 April 2012 (UTC)