Let's call it a "Hill" burner, but the principles are well established. The idea is to get a ring of gas jets to collide in the centre creating a magical floating flame just sitting in space. It is constructed using a scaple to cut pneumatic pipe and 4 or more T press seal pneumatic junctions and .... glue dispensing nozzles for jets.  Briefly described is a central ion infuser that is assisted by current flow.  This level of construction was held back to avoid confusion. Podcast