(Ooooo, now this one seems like a challenge!)
No piece of normal-size paper can be folded in half more than 7 times.
This work by Sarah Salway is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.
This work by Sarah Salway is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.
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