Uploaded May 2014 | Updated September 2026, 1 week ago

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How to build a fire tornado machine with no moving parts or screens! It can even be easily constructed with cardboard. Also: why the fire Tornado works, how it makes a vortex and why the flame looks like it's getting taller!

Build one from Cardboard:
youtu.be/uNo2lp12Qxk

Cool slow motion footage:
youtu.be/6uGrnGSbTSo

Other Links:
Bonfire Tornado:
youtube.com/watch?v=OL_VUh4gzIk

Tabletop model with rotating screen:
youtube.com/watch?v=3tZF6-i8aDc

Museum demo with guided draft similar to mine (and maybe also a fan?):
youtube.com/watch?v=M-V-tNkbsVA