So the basic functionality of that is you are passing a high-voltage current through something that frequently reverses magnetic polarity to get the arc to spin? Is that basically correct? The frequency of the magnetic pole reversal dictates the speed the arc rotates around the device? Is that right?
What are you using to get the HVDC? I scrapped around and can only find 3 microwave rectifiers, so that rules out a bridge rectifier. ... Do you think pulsed dc would work? 30ish Hz?
In order to work that way (wiki calls it a concentric rail gun) there would have to be a split in the rings of the bearings. The bearings, conducting from all sides would draw current in both directions around the rings making their magnetic fields cancel out. I have read the paper which describes the bearing motors operating on an interaction between the magnetic field of the center rod but that is nothing like the interaction shown in my video.
"ball bearing motor" videos operate on thermal expansion not the lorentz force, the current passing though the bearings heats them causing them to expand and squeezing them away as cooler bearing take their place. Because the bearings can all only move in one direction the shaft rotates, no magnetic fields involved.
Thats beautiful ! :-)
Risenangelicaegis 7 months ago
ufo.........
dreamyear 1 year ago
Wow, that is AWESOME! Nice work.
So the basic functionality of that is you are passing a high-voltage current through something that frequently reverses magnetic polarity to get the arc to spin? Is that basically correct? The frequency of the magnetic pole reversal dictates the speed the arc rotates around the device? Is that right?
VoteORquitCRYIN 1 year ago
@VoteORquitCRYIN
It spins because the magnetic field does NOT change direction. The constant magnetic field puts a force onto the DC arc.
nik282000 1 year ago
Wow, that is AWESOME! Nice work.
VoteORquitCRYIN 1 year ago
Can you use something like that to cut through objects? (Brain Food)
CrewOfRocketMen 2 years ago
What are you using to get the HVDC? I scrapped around and can only find 3 microwave rectifiers, so that rules out a bridge rectifier. ... Do you think pulsed dc would work? 30ish Hz?
trustthewater 2 years ago
I was feeding it with half wave rectified DC so yes it will work fine.
nik282000 2 years ago
Cool!
I would like to know why I have gone 24 years with on and off again HV experiments and not one heard of this or thought of it.
trustthewater 2 years ago
i have never seen this before. Top shelf!
trustthewater 2 years ago
In order to work that way (wiki calls it a concentric rail gun) there would have to be a split in the rings of the bearings. The bearings, conducting from all sides would draw current in both directions around the rings making their magnetic fields cancel out. I have read the paper which describes the bearing motors operating on an interaction between the magnetic field of the center rod but that is nothing like the interaction shown in my video.
nik282000 4 years ago
"ball bearing motor" videos operate on thermal expansion not the lorentz force, the current passing though the bearings heats them causing them to expand and squeezing them away as cooler bearing take their place. Because the bearings can all only move in one direction the shaft rotates, no magnetic fields involved.
nik282000 4 years ago
COOL! Much better than jacobs ladder.
FuseBox80A 4 years ago
Comment removed
snownet 4 years ago 2