Will someone tell me the difference why they are calling a sail a ‘kite’ here? I don’t care if it looks like a kite, as far as I’m concerned, it’s a sail, and I m very amused by it. We’ve had powered ships for about 200 years, but ironically we’re having to return to the ancient technologies in order to save the environment. Whatever next? Steam powered cars? Even better, horse drawn wheelchairs.