How the Library of Congress packed 250 years of US history into a vial the size of a quarter

Using synthetic DNA, the LOC shrunk down handwritten lyrics to the ‘Star-Spangled Banner,’ a rendering of Abe Lincoln’s hand, ...
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The Oldest Presidents in U.S. History, Based on Their Age at the Time of Inauguration

Age was nothing but a number for the leaders who ascended to the presidency in the later years of their lives Jim Watson-Pool/Getty Images; Jeff J Mitchell/Getty Images; Harry Langdon/Getty Images On ...