http://www.instructables.com/id/Windbelt-from-hard-drive-voice-coil-and-magnets
http://www.instructables.com/id/Windbelt-Redux--21st-Century-Micro-Power-Generatio
;D
I built 4 windbelt for test:
http://www.youtube.com/watch?v=8ulPtmmVelI
subtitle in english
in italian:
http://www.youtube.com/watch?v=GHGmK_MfWOo
http://www.youtube.com/watch?v=gfWvdZ4Ybkk
http://www.youtube.com/watch?v=zDn8MoNPjuk
and windbelt as ribbon loudspeaker
http://www.youtube.com/watch?v=lWZTavCmMBI ;)
cooming soon a full size windbelt..