You may of heard about Whissons Windmill? It was invented in 2007, but as yet appears to have got no further off the ground.
Here is the latest invention which won the £10 000 the prize at the 2011 James Dyson Awards. It is called the Airdrop.
Both work on the principle of drawing water from the air
Click here to watch this video
Or here for this one...
The principle of this





