User talk:Matthewc5

December 2020
Hello, I'm DVdm. I wanted to let you know that I reverted one of your recent contributions—specifically this edit to Newton's cradle—because it did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help desk. Thanks. DVdm (talk) 12:57, 14 December 2020 (UTC)

 You have been blocked indefinitely from editing for abuse of editing privileges. If you think there are good reasons for being unblocked, please read the guide to appealing blocks, then add the following text below the block notice on your talk page:. Materialscientist (talk) 09:13, 23 December 2020 (UTC)