I'm not an engineer but as I understand it: They are harder to make than a traditional windmill. Mechanically probably wasn't the best word to use I guess, at least for most designs.
There are folding all sorts of things from scooters to bikes.
Hell, my electric fatbike folds!
I kinda want to pick up one of those folding Terns with the carbon belt and internal up too. It's even got lights powered by dynamos - seems great for getting onto busses and whatnot.
"They walk on face of moon comrade: We must avenge this disrespect!"
Sensible legislation? Surely this won't pass.
Because money/practical limitations: It costs more to make them and in ye olden times I'm not sure they had the technology to make a reliable vertical axis turbine.
They do exist these days, but aren't as common because they're more expensive and complicated (which also means more maintenance, which further adds to the long-term cost).
I'd be shocked if you couldn't.
BBB and Yelp are a racket, but that doesn't necessarily mean there isn't a legit problem.
When you have an insatiable lust for novelty?
Honda fanboi here: No lol, I will definitely not be purchasing this.
Challenge accepted.
Not as bad as a skateboard though lol