Read this: Motionless Wind Energy

Now unpick the article: ‘It features wing-like vertical aerofoils that create a vacuum effect, drawing air behind an internal propeller’.

Hmmm. A ‘propeller’. Let’s look at that..
All of the definitions I’ve looked at convey a sense that a ‘propeller’ does just that, propels water or some gas, usually air. The propeller is the delivery system from a source of energy, NOT as is implied in the article, a ‘receiver’ of energy, in this case wind.
The word Galya Dimitrova is ‘TURBINE’.

Moving on to ‘motionless’. The article is a monumental bag of crap. Just because the ‘propeller’ is hidden, doesn’t justify it as motionless.

Thank you, and good night BBC.