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When you fold the newspaper its area is halved
each time. At the same time the pile's thickness is doubled and grows
rapidly.
So after the first seven folds a pile has its area very small (only
1/128) of the full sheet's area, and its thickness is 128 times more.
So it's a very hard task to fold so small and so thick pile for the
eighth time, and almost impossible to do the ninth fold. |
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