User talk:223.190.138.34

November 2021
Hello, I'm Kpgjhpjm. I wanted to let you know that one or more of your recent contributions&#32;to Louis de Broglie have been undone because they 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 Teahouse.   Kpg  jhp  jm  08:33, 8 November 2021 (UTC)