[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Egg of Columbus

Original poster: Finn Hammer <f-h@xxxx>
I saw an interpretation of this egg at the Palais de la Decouverte on Champs Elysées, Paris 
It is in the glass montre in the back, but it is hard to see it.
http://www.palais-decouverte.fr/discip/physique/electromag/index.htm
It consists of just 3 iron cored solonoids, each pointing right into the center of the egg. Really simple, and far more intuitively understandable than an induction motor stator winding which is hard to grasp. 

Cheers, Finn Hammer


Tesla list wrote:


Original poster: "Cameron B. Prince" <cplists@xxxxxxxxxx>

Hey guys,

After more research, I found that Harry Goldman has created an Egg of
Columbus you can see here:

http://mysite.verizon.net/res07cmo/images/Egg-of-Columbus.jpg

Apparently, at one time, Ed Wingate had some schematics around his shop for
it. Ed, do you still have those?

>From what I can gather, the system uses a standard induction motor stator
pulled from a household appliance.

I believe Harry provides more details in the magazine called Electric
Spacecraft Journal Vol. 40. Does anyone have a copy of this they could look
in for a schematic?

Thanks,
Cameron

> -----Original Message-----
> From: Tesla list [mailto:tesla@xxxxxxxxxx]
> Sent: Tuesday, September 12, 2006 8:38 PM
> To: tesla@xxxxxxxxxx
> Subject: Re: Egg of Columbus
>
> Original poster: Ed Phillips <evp@xxxxxxxxxxx>
>
> I knew it was multiphase, didn't realize it used four phases though!
> I assume it's possible to build one which uses only three.  I'd love
> to build one, but I'd have to synthesize the multiphase power.  If it
> can be done with only two phases and windings, it gets lots easier-
> just add a capacitor, like a squirrel cage motor! "
>
>     Really two-phase.  Conversion from two to four or four to two is
> a simple job with transformers (as is conversion to and from
> three-phase) but there's no advange for this kind of a toy.
>
> Ed