Article ID: CBB000850785

Genesis of a Geophysical Icon: The Bullard, Everett and Smith Reconstruction of the Circum-Atlantic Continents (2008)

unapi

The first computer fit of the continents had its origins in a controversy over Warren Carey's visual fit between South America and Africa. Sir Harold Jeffreys denied that there was a fit, but Sir Edward Bullard considered the fit to be impressive. Bullard suggested quantifying the fit to Jim Everett, a graduate student at the time. Everett did so, developing his own method from his mathematical background, and computed the fit for the South Atlantic. Alan Smith, then a research assistant, used his geological knowledge and worked with Everett to fit together all the circum-Atlantic continents. Thus Bullard had the idea of quantifying the fit, and Everett and Smith implemented it. Then Smith extended the method to fits beyond the Atlantic. The outcome owed much to Bullard's leadership, and to the lively and open discussions that prevailed during coffee and tea at Madingley Rise, which housed the Department of Geodesy and Geophysics of the University of Cambridge at that time.

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Authors & Contributors
Bento Cavadas
Powell, James Lawrence
Oreskes, Naomi
Melvyn Mason
Daniele Musumeci
Robert S. White
Journals
Earth Sciences History: Journal of the History of the Earth Sciences Society
Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics
Physis: Rivista Internazionale di Storia della Scienza
Notes and Records: The Royal Society Journal of the History of Science
Nature
Metascience: An International Review Journal for the History, Philosophy and Social Studies of Science
Publishers
Ball State University
Westview Press
Institute of Physics Publishing
Geological Society Publishing House
Free Press
Columbia University Press
Concepts
Plate tectonics and continental drift
Geology
Earth sciences
Textbooks
Time measurement
Geomagnetism
People
Wegener, Alfred Lothar
Domenico Lovisato
Steno, Nicolaus
Jeffreys, Harold
Blackett, Patrick Maynard Stuart
Time Periods
20th century, late
20th century
20th century, early
19th century
Places
Spain
United States
Portugal
Great Britain
England
Romania
Institutions
Australian National University
Geological Society of London
Cambridge University
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