Chairman, people in the fresh American Geophysical Union, and you will honored travelers

“Mr. I’m moved and not a tiny flattered from the type and you will large reviews i’ve simply read in the citationist, my pal Jean Dickey, having whoever group on Jet propulsion Research We have liked doing work sporadically for the issues in geodesy. We count they good award to join the newest ranking from those geophysicists who have been approved brand new William Bowie Medal from the new AGU. They become three fellow countrymen (Harold Jeffreys, just who gotten the prize into the 1952; Sydney Chapman when you look at the 1962; and you will Teddy Bullard in the 1975), and i is actually lucky enough to satisfy and you can communicate with all of these in my days since students, a long time before my personal earliest stop by at the us to go to a scientific meeting on Johns Hopkins College within city out-of Baltimore!

“It actually was Bullard whom in the 1947, around the lifetime of their fruitful head to geodynamo concept, ideal that P. Yards. S. Blacketts the fresh new `standard idea of your Earths magnetic field will be checked from the determining the community varies which have depth, and it also is Chapman who having Keith Runcorn after that worked out what alter can be expected in the event your idea had been correct. The newest check out, and therefore helped disprove the theory, was properly done in several deep coal mines in numerous areas of Great britain according to the direction from Blackett and you may Runcorn. Continue reading