User talk:123.136.106.157

Hello, I'm Materialscientist. I noticed that you made a change to an article, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. Materialscientist (talk) 05:44, 11 July 2016 (UTC)

November 2016
Hello, I'm Jim1138. I noticed that in this edit to 1977, you removed content without adequately explaining why. In the future, it would be helpful to others if you described your changes to Wikipedia with an edit summary. If this was a mistake, don't worry, the removed content has been restored. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Jim1138 (talk) 09:43, 7 November 2016 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself so you can avoid further irrelevant notices.

December 2017
Hello, I'm Alpha3031. I wanted to let you know that I reverted one of your recent contributions —the one you made with this edit to Hydraulics— because it did not appear constructive. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. &mdash; Alpha3031 (talk &#124; contribs) 10:10, 9 December 2017 (UTC)