Here's a pretty crazy resonance video I found over on a video site. You maybe have seen some of our other blogs where they use resonance to form patterns in sand and water. In this video which is similar a guy has about a 30cm diameter piece of paper covered in moss spores. The paper is vibrated and it causes all kinds of crazy patterns to form in the spores (powder). The different frequencies cause different patterns to form. He focuses on two patterns in the video where the spores spin around like a galaxy in the center of the paper; first clockwise and then counterclockwise.