Blue Fire Whirls

A low-emission method of combustion is full of puzzles and potential. See the accompanying article in American Scientist magazine: https://www.americanscientist.org/art... American Scientist is the illustrative, award-winning magazine of Sigma Xi, The Scientific Research Society and is your source of science, technology and engineering news and features since 1913! Visit our website at http://www.americanscientist.org. © 2016 Sigma Xi, The Scientific Research Society