Time has taken its toll along Tinicum Township's Headquarters Road, nature seemingly reclaiming Pennsylvania's oldest surviving pier to pier bridge. The bridge sits in the heart of the Ridge Valley ...
As long ago as 1910, when a steady parade of steamships bearing immigrants passed through the Narrows—the mile-wide channel at the entrance to New York Harbor—engineers envisioned a great bridge as a ...
Steven Strogatz, professor of theoretical and applied mechanics at Cornell University, describes the Millennium Bridge's notorious opening-day oscillations in the Nov. 3 issue of Nature. Steve ...
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