User talk:M.kan12

November 2012
Hello, I'm A412. I wanted to let you know that I undid one or more of your recent contributions to Timeline of solar cells because it didn't appear constructive. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. A412 (Talk &bull; C) 06:38, 13 November 2012 (UTC)