User talk:Kumar Utkarsh

July 2017
Hello, I'm DVdm. Your recent edit to Branches of physics appears to have added incorrect information, so I removed it for now. If you believe the information was correct, please cite a reliable source or discuss your change on the article's talk page. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. DVdm (talk) 15:34, 25 July 2017 (UTC)

Please do not introduce incorrect information into articles, as you did with this edit to Speed of light. Your edits appear to be vandalism and have been reverted. If you believe the information you added was correct, please cite references or sources or discuss the changes on the article's talk page before making them again. If you would like to experiment, use the sandbox. Thank you. DVdm (talk) 15:50, 25 July 2017 (UTC)