wind tower turbines developing from ancient persian mills to modern hawt and vawt turbines, a pure energy producing technology
3/%:7-308
11070399508413/9:7-308
W
7,9509:7-308
!078,33/2 30803/00 $,;4:3:8
W 199509:7-308
'%'079.,83/%:7-30
W
,770:8
%47439,83/%:7-30
W %0
,38.43.059W 207.,32:9-,/0W 7:22,33/8970,2
7,9509:7-308
%0!078,33/2%030803/00$,;434:8
7,9509:7-308
#011-:389:99,79/0=/4073070/083592