“THEY MADE AMERICA”In his latest book, Evans shows how the twin forces of invention and innovation made today’s America. AN INTERVIEW WITH HAROLD EVANS BY FREDERICK E. ALLEN
THE WIZARD OF OCTANEEugène Houdry’s miraculous catalyst turned nearly worthless sludge into precious high-octane gasoline and helped the Allies win World War II. BY TIM PALUCKA
THE MAN WHO MADE COTTON KINGEli Whitney’s cotton gin changed cotton from an expensive niche product to a lucrative commodity. It also revived the institution of slavery. BY STEPHEN YAFA
ENGINEERING YOUR BABYToday parents can know before pregnancy starts whether their baby will be free of genetic disease. Not everybody thinks that’s a good thing. BY BERYL LIEFF BENDERLY
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