Erlebnisland Mathematik | Technische Sammlungen Dresden | Junghanstraße 1-3 | 01277 Dresden
Erlebnisland Mathematik

Yes you can!

It is easy to muddle up this puzzle by rotating (gently!) the four circular areas (use your flat hand).

Restoring the original order, so that it show the inscription “Hab den Mut” (“be courageaous”), is much harder.

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_IGP0961