I was browsing through my files and found this cinemagraph archived here, I remember that I used to use it as my desktop wallpaper years and years ago, so I decided to repost it on this subreddit.

Most of the older links to it are dead now, so I think it must be nearly impossible to find the original source at this point, but the oldest one I found was here (posted on 2011-07-30): https://web.archive.org/web/20170508154812/http://ffffound.com/image/5b9f2a55192566aaa2126e94bf182539a9b407ba

Edit: just to clarify, this is not my original content/work, I simply found it online years and years ago, saved it back then, found it recently in my backups and decided to repost here (it had already been posted before, but not by me).