William Bowie medal to Edward Bullard
Article first published online: 3 JUN 2011
©1975. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 56, Issue 11, pages 918–919, November 1975
How to Cite
1975), William Bowie medal to Edward Bullard, Eos Trans. AGU, 56(11), 918–919, doi:10.1029/EO056i011p00918., and (
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
- Cited By
Teddy Bullard has played a leading role in the geophysical drama of our lifetime: the story of plate tectonics. After graduating in physics from Cambridge University and continuing at the Cavendish Laboratory under Rutherford, Teddy was appointed a Demonstrator in Geodesy by Lenox-Conyngham. This resulted in his earliest work, measurements of gravity over the African Rift Valley. Bullard showed that the East African Rift is not a subsidence feature, but instead is a manifestation of the emplacement of dense mantle material close to the surface. Hence Bullard showed that the rift zone was in fact a sundering of the continent. This was significant evidence of convective motions in the earth's interior.