STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[PaulLowrance]

Vid and quote from Larskro
Min. power use 2,9 volts x 50 mAmps = 0,145 watt. Speed 600rpm
I will try to reach zero power or overunity ?? free energy.
The toroid coil have about 300 turns. I have back EMF.
http://www.youtube.com/watch?v=aGPRoHgz8Rw

cat

Nice video and great job!!  I'm jealous that you have the parts to make a Steorn replication. 

[PaulLowrance]

Did some research on core materials:
[snip]
MetGlas                1,000,000

Ha ha, I already have that MetGlas core. Those cores are amazing! They're noncrystalline and amorphous cores. Just wish I had some ball bearings, rod, and all else that's needed to replicate an eOrbo version.

[lumen]

If the key factor of operation is core saturation, then just selecting a material with a very high permeability would also require a strong field to saturate the core.
Would it be better to use a material that saturates just above what the magnets would be applying so that there would not be any loss in attraction but the coil could easily saturate the core?

[Groundloop]

@PaulLowrance,

Do you have a used computer fan? Some super glue? Some magnets?

Then you can make a super low friction rotor in no time. Just carefully take
apart the fan, remove the fan blades, glue magnets onto rotor hub, remove
the fan electronic. Now you have a low friction rotor with magnets on.

Groundloop.

[Omega_0]

As there are a garden variety of materials, best way to know the saturation point (Hmax) for a material is through manufacturer specs. Here is a good trick to calculate the amp-turns required to saturate a ferrite core.

http://lists.contesting.com/_topband/2004-01/msg00104.html
(So Amp-turns = 0.8 x Hmax x length(cm))

Calculator for converting Oe to Amp/m :
http://www.translatorscafe.com/cafe/units-converter/magnetic-field-strength/calculator/oersted-%5BOe%5D-to-ampere-turn-per-meter-%5BAt/m%5D/