Four types of flames join forces to make this eerie ‘blue whirl’
Scientists have now mapped the structure of the unusual spinning blaze
![blue whirl flame](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/08/081120_ec_flames_feat.jpg?fit=1030%2C579&ssl=1)
This unusual spinning flame, called a blue whirl, is made up of four different types of flames, researchers report.
Univ. of Maryland