User talk:202.88.232.150

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) 08:00, 1 August 2014 (UTC)

Mistake? Vandalism?
This edit and the next one do not make sense. If you really meant to undo the effect of the first edit with the second one, you could have accessed the history page and clicked "undo" (which I have just done, so there's no need to take any action). If you didn't, your edits constitute vandalism, which is usually discouraged with blocks. -- UKoch (talk) 17:44, 31 October 2018 (UTC)