Geometric Progression — a sequence of numbers where the quotient of two successive numbers is constant
More information
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See also
How To Fold Paper In Half Twelve Times — Britney Gallivan’s site talking about her accomplishment
Ask Dr. Math — Question and answer about paper folding, including a response from Britney Gallivan
Science News For Kids — article on Britney Gallivan and paper folding
Numb3r Crunching — Numb3s fan Hephaistos has worked out how folding paper fifty times will in fact reach the sun.
Pyramid Scheme — a non-sustainable business model that promises high returns for very little investment.