I just had the pleasure of going through my ENTIRE BLOG looking for this video, because I was SO SURE that I had posted it. That’s the paradigm of human memory for you. It was a nice blast through my past, though.
I think I like this one the best because it is the most creative use of ferrofluid. It has such fantastic properties on its own but adding it to soap bubbles, which themself have pretty interesting properties, was pretty damn clever. In all honesty though, this is barely any better than any other ferrofluid video because the substance is just so unbeatably fucking majestic when magnetized; honestly, all the top-viewed youtube videos and the tumblr tag for ferrofluid gives endlessly cool art. Its hard to pick a favorite. This one just has a cool concept bump which sets it apart, I guess.
Coincidentally, I just posted that soap picture last night. The world at large also works in a myriad of strange, ferrofluidic ways.