Surface Waves And Surface Tension


These movies were made by participants in the 2010 LivePhoto Physics Workshop in Portland, OR. The video shows a drop of ink (the black liquid) coming into contact with a drop of surfactant (dilute soap solution). The surfactant reduces the surface tension of the ink drop whose contact angle rapidly decreases. The video also shows surface waves propagating along the surface of the ink drop. The videos were recorded with a Casio Exilim camera operating at a frame rate of 1000 frames per second.

Right-click (or Control-click) on a link in the following list and choose "Save Link As" to download the movie.

Primary Author and Contributors

  • Primary Authors: Venkatesh Gopal (Elmhurst College) and Fumio Ohuchi (University of Washington)


The files available for download on this page are licensed under a Creative Commons Attribution No-Derivative-Works Non-Commercial 3.0 License. You may distribute these materials to your students or use them for educational purposes in your classes, but other uses may require permission from the author(s).