1. Please have a look at: http://der-am-rad-dreht.de/ and click ‘next’. It’s a type of waterwheel, but driven by pumping air at the bottom floater.
Thank you for the link.
The problem with this type of wheel is that it takes more energy to pump the air into the bottom of the chamber than you get back from the buoyancy power imparted to the wheel.
2. Have you heard of the Kinetic Power Plant from Swiss, from a company called Rosch?
No.
Has similarities to Ezekiels wheel. They are building a 100 kW prototype near the airport of Koln, Germany. I expect to go there beginning of 2015.
I’d love to hear more.
I’ll come back to you with more.