User talk:49.204.220.146

Hello, I'm Materialscientist. I noticed that you added or changed content in 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. You can have a look at referencing for beginners. If you think I made a mistake, you can leave me a message on my talk page. Thank you. Materialscientist (talk) 01:21, 18 January 2023 (UTC)

Please do not add original research or novel syntheses of published material to articles. Please cite a reliable source for all of your contributions. Thank you. Materialscientist (talk) 01:25, 18 January 2023 (UTC)

 You have been blocked temporarily from editing for abuse of editing privileges. Once the block has expired, you are welcome to make useful contributions. 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) 01:25, 18 January 2023 (UTC)