User talk:199.96.187.172

Recent edit to Quantum mechanics
Hello, and thank you for your recent contribution. I appreciate the effort you made for our project, but unfortunately I had to undo your edit because I believe the article was better before you made that change. Feel free to contact me directly if you have any questions. Thank you! Dcirovic (talk) 18:00, 22 April 2016 (UTC)

November 2016
Hello, I'm LM2000. I wanted to let you know that one or more of your recent contributions to CNN controversies have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks. LM2000 (talk) 18:17, 2 November 2016 (UTC)