Originally posted by mrbreau
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Actually, it may be closer to on-topic than we may realize!
Notice the action occurring in this video:
YouTube - SPR Cavitation Dye Test
And the descriptor of what is happening here:
R&D - Hydro Dynamics, Inc.
I can't help but see a similarity between the top view profile of David's elements and the cavity used in those SPR rotors.
Could it be that David is getting a similar cavitation in the elements with air? Perhaps the relative humidity and dew point are critical factors

Just exploring all the possibilities here
I know this is off topic but the answer has to be presented where the question was asked. Right?
Closure on these projects eludes me. You also need to know that I’m wired a bit different from most folk. My thinking goes in a far different route than the major highways.
...the effects i listed are subtle...but they are there! ...sorry about not getting back to every one, please forgive me..saturday market......why do people not like to be filmed....plenty of people saw the wave ....nobody wanted their picture taken...maybe it does steal their spirit!?....any way i hope this helps ...also it seems that to get the best visible effect, after its working again, hold a weight of steel or iron over center axis, around 10 degrees off towards north and spin it ...you should feel a spot where it pulls down the most.....thanks...david

Let's hear it for international delivery success 
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