THE GREAT REAPER WARCyrus McCormick won it—his Virginia reaper came to dominate America’s harvests—but he didn’t win by building the first reaper or, initially, the best. by Joseph Gies
THE ANCIENT HISTORY OF SYSTEM/360Developing System/360, in the early 1960s, meant spending five billion dollars to make every existing IBM computer obsolete. The gamble paid off—and reshaped the industry. by James E. Strothman
CRAZY ABOUT RUBBERCharles Goodyear was known as a monomaniac. Here’s why. by Robert Friedel
THE PURSUIT OF PLUTOSixty years ago Clyde Tombaugh discovered a new planet—one that couldn’t be found until the proper technology came along. by Ken Croswell
WHY CITIES DON’T DIEThe surprising lessons of precision bombing in World War II and Vietnam. by Josef W. Konvitz
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