Welcome to Wikipedia. Everyone is welcome to contribute to the encyclopedia, but when you add or change content, please cite a reliable source for your addition. This helps maintain our policy of verifiability. See Wikipedia:Citing sources for how to cite sources, and the welcome page to learn more about contributing to this encyclopedia. Thank you. Materialscientist (talk) 12:56, 24 July 2012 (UTC)
Please do not remove content or templates from pages on Wikipedia without giving a valid reason for the removal in the edit summary. Your content removal does not appear constructive and has been reverted. Please make use of the sandbox if you'd like to experiment with test edits. Thank you. Materialscientist (talk) 12:56, 24 July 2012 (UTC)