Fascinating waterpower and wind power things in Transylvania

More from the Astra Folk Museum, Sibiu.  You'll probably recognise the first one as a floating water mill, there are load of such wonderful contraptions in this vast outdoor museum. The second is typical of the nice little windmills that you'll see out to the East, near for example the Danube Delta.  What's the third one? Can you guess? That's right. Fill it with clothes, a vortex is formed, and the clothes spin round. It's a water powered washing machine. Amazing.