User talk:MasterBlasterSi

Hello, I'm Materialscientist. I noticed that you recently removed some content without explaining why. In the future, it would be helpful to others if you described your changes to Wikipedia with an edit summary. If this was a mistake, don't worry: I restored the removed content. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks! Materialscientist (talk) 06:30, 28 April 2013 (UTC)[reply]

Please do not add or change content without verifying it by citing a reliable source. Please review the guidelines at Wikipedia:Citing sources and take this opportunity to add references to the article. Thank you. Materialscientist (talk) 06:30, 28 April 2013 (UTC)[reply]