SIX SHIPS THAT SHOOK THE WORLDIn the late 1790s America’s tiny navy was the most technologically advanced on earth, thanks to its radical shipbuilding techniques. by Roger Archibald
THE LIMELIGHTIt was used for a lot more than spotlighting actors, and though the technology is obsolete, the word remains in everyone’s vocabulary. by Denton Beat
THE QUARTER-TURN SOLUTIONIn the 1930s William Dzus solved the problem of vibration in airplanes with some piano wire, a spiral-cut stud, and perfect timing. by Steven L. Thompson
PENN STATION LIVES!Yes, it was torn down in 1963. But it was only a small part of a vast infrastructure of track, tunnels, bridges, and more that still does the job. by William D. Middleton KOGA’S ZEROThe Zero fighter gave America hell in World War II, but after Tadayoshi Koga’s was shot down and salvaged, Americans learned how to beat it. by Jim Rearden
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