Your private tropical island getaway...

...needs fresh water. What are you going to do? Try a windmall that makes fresh water from salt water.

This is a low-tech solution that doesn't require expensive batteries and operates using a simple, commercially available windmill with minor modifications. It can produce enough water for a village of around 500 people.

Sounds like something the Professor from Gilligan's Island made with palm trees, coconut shells, wire and tape.

But in this case it's real, developed by the Delft University of Technology (TU Delft) in The Netherlands. It uses a high-pressure water pump to push water through a reverse osmosis membrane.

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