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
Oreskes, Naomi
Powell, James Lawrence
Bento Cavadas
Anduaga Egaña, Aitor
Coode, Alan M.
Creer, Kenneth
Journals
Earth Sciences History: Journal of the History of the Earth Sciences Society
British Journal for the History of Science
Historical Records of Australian Science
Metascience: An International Review Journal for the History, Philosophy and Social Studies of Science
Nature
Notes and Records: The Royal Society Journal of the History of Science
Publishers
Columbia University Press
Free Press
Geological Society Publishing House
Institute of Physics Publishing
Westview Press
Ball State University
Concepts
Plate tectonics and continental drift
Earth sciences
Geology
Textbooks
Epistemology
Philosophy of science
People
Wegener, Alfred Lothar
Blackett, Patrick Maynard Stuart
Jeffreys, Harold
Steno, Nicolaus
Domenico Lovisato
Time Periods
20th century
20th century, late
19th century
20th century, early
Places
Great Britain
Portugal
Spain
United States
Australia
Italy
Institutions
Cambridge University
Geological Society of London
Australian National University
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