Think it cant be done? Think again!
Britney Gallivan has solved the Paper Folding Problem. This well known challenge was to fold paper in half more than seven or eight times, using paper of any size or shape.
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The exact limit for single direction folding case was derived. It is based on the accumulative limiting effects induced by each and every fold in the folding process. Considering the intricacy of the problem the equation has a relatively simple form.
For the single direction folding case the exact limiting equation is:
where L is the minimum possible length of the material, t is material thickness, and n is the number of folds possible in one direction.
L and t need to be expressed using the same units.
More details here [Wolfram].
Aaron Fulkerson 
I thought it was impossible!! The equation worked for two cases I worked out. Impressive.
Outstanding, this is definately Ig Nobel worthy!