Susi Sie states that she is on a “mission to explore the physical and mathematical nature of unusual forms, substances and materials to show the hidden beauty and magic of our natural world that constantly surrounds us.”  Her videos are indeed magical in the way powder particles form shapes and move in rhythmic manner (and the audio is perfectly in sync). All of her scenes were shot with a photographic camera, the old-school way with no CGI.
1. "About." Susisie.de. Retrieved on November 18, 2014. All images and videos © Susi Sie Via Vimeo