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MegaPenny Project
A site that helps to visualize extremely large numbers, using the common penny. For each quantity, the value, width (side-by-side), height (stacked), thickness, weight, and area (laid flat) are provided. There are also a table of very big numbers, a bonus section ( MegaMoon ) illustrating how large 1,000,000 cows would be, and related resources.
http://kokogiak.com/megapenny/

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