A fire tornado is a rare occurrence, but can happen naturally without any human intervention. In this video, the slo-mo guys try to re-create a fire tornado using a flame and an array of 12 box fans placed in a circle around the flame.
After the attempt to make a fire tornado is successful, the slo-mo guys do what they do best, and they turn down the speed on the camera so that you can see the magnificent forces at work in super slow motion.
The slo-mo guys note that the frames were slowed down to both 1000 frames per second and 2500 frames per second using the powerful Phantom Flex and Phantom Flex 4K slow-motion cameras.
Now that's some serious eye-candy right there.