User talk:27.63.17.153

May 2022
Hello, I'm DVdm. An edit that you recently made to Talk:Elastic collision 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) 16:53, 23 May 2022 (UTC)