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Bendy blades on wind turbines

 
Mother Tree
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Just thought I'd share this photo which shows how much the blades bend in the wind.

The turbine closest is turning at a fair speed.  The one further back isn't turning.  

 
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Similar to helicopter blades, they go all over the place when seen in slow motion - they flex along and across their length. That's why we're told to stoop when entering and leaving them. Quite amazing engineering.
 
Burra Maluca
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We met one of the engineers up there once.  I thought the blades must be made of some really fancy high-tech gubbins to be able to flex like that, but he told us they are wood with a fibre-glass coating.
 
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