User talk:206.213.165.106

March 2022
Hello, I'm 49TL. I wanted to let you know that one or more of your recent contributions&#32;to Ion thruster 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. Thanks. 49 TL  21:29, 16 March 2022 (UTC)

Before adding a category to an article, please make sure that the subject of the article really belongs in the category that you specified according to Wikipedia's categorization guidelines. The category being added must already exist, and must be supported by the article's verifiable content. Categories may be removed if they are deemed incorrect for the subject matter. Thank you. Squeakachu (talk) 21:52, 16 March 2022 (UTC)