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Policy & Ethics12854 articles archived since 1845

A Zeppelin for the 21st Century

By developing new aerodynamic computer models and using modern materials, the company that originated zeppelins has returned them to the skies over Europe

November 20, 1999 — Klaus G. Hagenlocher


High-energy polemics erupt over plans to replace an aging French synchrotron

November 20, 1999 — Gary Stix and Marie-H¿l¿ne Bojin


Cross-species infection, the main worry with putting pig organs into humans, seems less likely

November 20, 1999 — Arlene Judith Klotzko

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