User talk:Aadam469

January 2015
Hello, I'm Petrb. I wanted to let you know that I undid one of your recent contributions —the one you made with this edit to Nanotechnology— 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. Petrb (talk) 14:58, 5 January 2015 (UTC)