User talk:45.221.210.106

February 2020
Hello, I'm Mr. Vernon. I noticed that you added or changed content in an article, Bradford Vaughan, 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 the tutorial on citing sources, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. Mr. Vernon (talk) 10:27, 29 February 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.

July 2020
Hello, I'm Materialscientist. I wanted to let you know that I reverted one of your recent contributions —specifically this edit to Superhard material—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. Materialscientist (talk) 11:39, 2 July 2020 (UTC)

Notification: Blocked
You have been blocked from editing for a period of 31 hours for Vandalism. Once the block has expired, you are welcome to make useful contributions. If you think there are good reasons why you should be unblocked, you may request an unblock by first reading the guide to appealing blocks, then adding  below. Materialscientist (talk) 11:39, 2 July 2020 (UTC)