Hi - just passing on an interesting thing I discovered.
http://www.csiro.au/resources/pf11g.html#design
The motor, used in solar cars, uses a halbach array to control magnetic flux, instead of heavy steel rotor discs. The coils are wrapped in a confusing way (haven't read enough of it yet to picture it myself). In other respects it looks like the alternators that are featured here.
No need to comment; just putting it out there because there are several memebers that have posted about their interest and/or experimentation with Halbach arrays in the past, and I thought they might appreciate this.
Steven
