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Ducted Wind Turbines: An Energy Game Changer? | MIT Technology Review

Ducted Wind Turbines: An Energy Game Changer? | MIT Technology Review | Sustain Our Earth | Scoop.it
Ducted turbine promises significant advances but delivery remains to be seen.

Earlier this month SheerWind, a wind power startup based in Chaska, Minnesota, added a new design, INVELOX, to the list. INVELOX, short for “increasing the velocity of wind” is a ducted turbine that looks a bit like a giant funnel sitting on top of an equally large periscope. The ductwork is designed to capture wind from any direction, increase its speed and concentrate the moving airflow before passing it through a relatively small turbine at ground level.

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Difficult Labour: the birth of the financial transaction tax

"Video "Difficult Labour" for the financial transaction tax of Oxfam Germany with Heike Makatsch, Mark Waschke, Stephan Grossman & Rike Eckermann."

 

Brilliant and funny video on the Tobin Tax


Via Willy De Backer
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