Hello, Steven2332, and Welcome to Wikipedia! Thank you for your contributions to this free encyclopedia. If you decide that you need help, check out Getting Help below, ask me on my talk page, or place {{Help me}} on your talk page and ask your question there. Please remember to sign your name on talk pages by using four tildes (~~~~) or by clicking if shown; this will automatically produce your username and the date. Also, please do your best to always fill in the edit summary field with your edits. Below are some useful links to facilitate your involvement. Happy editing! Materialscientist (talk) 10:32, 19 July 2012 (UTC)Reply
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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) 10:32, 19 July 2012 (UTC)Reply