Mad Scientist Blows Flame Bubbles Underwater for Science

After some 'explosive' prototypes he definitely gets it right.

Ever made rings underwater? It's a fun thing to do when going in for a dip and whales even utilize them for feeding purposes.

So the YouTuber TheBackyardScientist deemed regular bubbles too mainstream and wanted to set rings on fire, underwater.

He begins with a relatively simple design to figure out how to make bubble rings underwater but the first prototype fails to produce bubbles. And for the combustion, he first sets out with an automobile spark plug, but it proves to be too scary.


Well, he then ditches the 120 V sparky stick and gets his hands on a 40k V stick. Safety first, right?

Backyard scientists then set out to experiment with different ratios of propane and oxygen to get different kinds of reactions. When they put too much propane, the residue of combustion surfaces into a ring-shaped smoke above the water before dissipating.

Interesting things happen with different combinations and the guy comes up with rather innovative solutions to the problems he faces. Make sure to watch it all as the video edit is really absorbing. 

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