By robertanderson

Robert has a background in physics and engineering. More of his science-art photography can be found at


Similar visually to the mandala images, these are cups of coffee vibrating at (top) and near (bottom) a normal mode frequency – coffee a la mode. The resonance phenomenon shown in these coffee cup images is similar to Cymatics and Chladni patterns on a circular plate. Although the lines in Chaladni figures are nodes, the bright areas in the coffee images are anti-nodes. (The coffee cups are vibrating at approximately 20Hz). These coffee images were created for a photo competition.