Electricity (was Re: The rest of the puzzle)

[info at olpc-peru.info]

I forgot the include a link to the construction of wind turbine/alternator:

http://www.youtube.com/user/greenerthings

It comes from the a National Geographic video.  Sorry, it is in spanish. 
There must be tons of similar designs in english. 

While searching I have realize that there are many possible designs, I 
will share the
collection once it has more meat, it is a matter of compiling and sorting.

Regards,

Javier Rodriguez
Lima, Peru