To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S3. Low-speed movie of experimental burn in cardboard fuels uses smoke to visualize vorticity of the airflow behind the approaching flame zone. Role of buoyant flame dynamics in wildfire spread Mark A. Finney, Jack D. Cohen, Jason M. Forthofer, Sara S. McAllister, Michael J. Gollner, Daniel J. Gorham, Kozo Saito, Nelson K. Akafuah, Brittany A. Adam, and Justin D. English PNAS. 2015. 112:9833-9838 DOI: 10.1073/pnas.1504498112 Download Original Video Browse All Videos »