This is wonderful. First time in Austria and I am amazed by the pure genius of this contraption. I’ve been staring at it for 15 minutes. It has completely blown my mind.

by weightyepilepsy

3 comments
  1. Wait till you see the trick where it opens both ways at the same time 😉

  2. We only do that in the summer tho – Winter time is STOẞLÜFTEN time!

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