Skysails successful test on video.
http://skysails.info/index.php?id=13
This is set to revolutionize the shipping industry and reduce the huge amount of fuel it uses by up to 50%. Skysails is ready to enter the market now. Bingo.
[I don't like the logic of shooting all birds at once, but since others use it so often to criticize technologies, I will apply the same logic to promote this one: *if all the world's ocean going ships were to use Skysails all at once tomorrow, then we would be saving 400 to 500 million barrels of oil per year*. Pretty impressive, I think.
(Global bulk fuel consumption is around 160 million tonnes per annum.)