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Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

The ability to store information has been an important aspect of human development. Ancient cave paintings, hieroglyphs on pyramids in Egypt, the eighth-century archival scrolls of the Shosoin ...

This story appears in the January 2012 issue of National Geographic magazine. Every summer, on the first weekend in August, thousands of twins converge on Twinsburg, Ohio, a small town southeast of ...