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The Search for Longitude
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Today's Great Challenge

The search for longitude was a problem so complex that it challenged the best minds of its time. What is our great challenge today? We've asked leading scientists and engineers to share their views.

Richard B. Alley, glaciologist | David Baltimore, biologist | Vint Cerf, computer scientist | Denise Faustman, immunologist | Howard Gardner, psychologist and educator | Robert Hazen, experimental mineralogist | Michio Kaku, theoretical physicist | Arthur Kantrowitz, physicist | Leon Lederman, high energy physicist | Dr. Mario Livio, theoretical astrophysicist | Marcia McNutt, geophysicist | Tobias Owen, astronomer | Stephen H. Schneider, climatologist | Michael Soulé, biologist | Stephen Wolfram, scientist

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