User talk:98.64.93.245

November 2012
Hello, I'm Mephistophelian. I wanted to let you know that I undid one of your recent contributions, such as the one you made to Conservation of energy, because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks, Mephistophelian (contact) 22:14, 19 November 2012 (UTC)