check out these eschwers of electricity:
http://www.youtube.com/watch?v=Mz7PJ2WuLWA
http://www.youtube.com/watch?v=J75VrPj-U6M
http://www.youtube.com/watch?v=kIXx_Yrjjvs
http://www.youtube.com/watch?v=HGQ37cq-zqE
>> http://www.youtube.com/watch?v=jenC0y2azsE <<
seems a lot harder right? but:
http://www.youtube.com/watch?v=tDgIGzw4VtA
> http://www.youtube.com/watch?v=P-DAg4NrnkU
