User talk:14.198.136.223

April 2021
Hello, I'm DVdm. An edit that you recently made to Gravitational energy seemed to be a test and has been reverted. If you want to practice editing, 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! - DVdm (talk) 15:04, 7 April 2021 (UTC)