摘要:

Sir Edward Bullard in 1973 said to me, “Betty, I want to tell you how my first ocean heat‐flow instrument was made in the summer of 1949.” He was then on his annual 3‐month visit to Scripps Institution of Oceanography and knew that I was writing a history of the institution. Teddy (as he preferred to be called) was proud of his participation in measuring the flow of heat at sea. The instrument that he described that day never made a heat‐flow measurement, but it did establish the technique that has been used for more than

ISSN:0002-8606    

DOI:10.1029/EO065i009p00073-01

年代:1984

数据来源: WILEY

摘要:

Professor Sir Edward Bullard was honored by his Queen in 1975 as a “world leader in geophysics.” Each of those words is apt: “world”—because indeed the earth was his domain, in theory and field work, in civilized and remote regions, and at sea; “leader”—because after listening to and conversing with students and colleagues he edged them toward carrying out large ideas from half‐formed thoughts; “geophysics”—a field between precise physics and imprecise geology that came into being only because a few outstanding and versatile scientists like Bullard could span the breadth. “Chance led me into geophysics at a wonderful time,” he said, “and it has been among the most rewarding experiences of my life to have played a part in the transformation of a backwater into

ISSN:0002-8606    

DOI:10.1029/EO065i009p00074

年代:1984

数据来源: WILEY

摘要:

Detection of the atmosphere of Saturn's satellite Titan by the Voyager I spacecraft indicated an abundance of only 3 mol % methane (CH4). Recently J.I. Lunine, D.J. Stevenson, and Y.L. Yung calculated that 3 mol % methane is sufficiently low to preclude the stable coexistence of liquid methane on Titan's surface, which has a temperature of 94 K (Science, 222, 1229, 1983). Instead, Lunine et al. suggest that Titan's atmospheric methane may have broken down by a catalyzed photochemical reaction to ethane (C2H6). The resulting ocean would consist of a mixture of C2H6and CH4in the proportion of 3 to 1.

ISSN:0002-8606    

DOI:10.1029/EO065i009p00075-03

年代:1984

数据来源: WILEY

摘要:

Just as groundwater hydrologists are breathing sighs of relief after the exertions of learning the finite element method, a new technique has reared its nodes—the boundary integral equation method (BIEM) or the boundary equation method (BEM), as it is sometimes called. As Liggett and Liu put it in the preface toThe Boundary Integral Equation Method for Porous Media Flow, “Lately, the Boundary Integral Equation Method (BIEM) has emerged as a contender in the computation Derby.” In fact, in July 1984, the 6th International Conference on Boundary Element Methods in Engineering will be held aboard theQueen Elizabeth II, en route from Southampton to New York. These conferences are sponsored by the Department of Civil Engineering at Southampton College (UK), whose members are proponents of BIEM. The conferences have featured papers on applications of BIEM to all aspects of engineering, including flow through porous media. Published proceedings are available, as are textbooks on application of BIEM to engineering problems. There is even a 10‐minute film on the

ISSN:0002-8606    

DOI:10.1029/EO065i009p00076

年代:1984

数据来源: WILEY

摘要:

As the recipient of the 1983–1984 AGU Congressional Science Fellowship [Eos, September 6, 1983, p. 543] I have been asked to report on my midterm experiences. I have learned two major aspects of business on Capitol Hill. First, I am impressed by the tremendously important relationship between science and the political world of Congress. Congressmen need and actively seek technical advice on legislative issues. As a scientist, one's point of view can have an impact on society as well as on one's disciplin

ISSN:0002-8606    

DOI:10.1029/EO065i009p00077

年代:1984

数据来源: WILEY

摘要:

Applications for membership have been received from the following individuals. The letter after the name denotes the proposed primary section affiliation.Raffi Aroian (P), David Baker (P), D. Craig Barilotti (O), Stephen J. Barnes (V), Thomas O. Barnwell (H), Robert P. Bessette (G), Brian Bicknell (H), William Blumberg (A), Michele A. Boccadoro (G), Richard Boylan (T), Robert C. Bucknam (T), Roman J. Budzianowski (H), Bruce M. Crowe (V), Charles G. Cunningham (V).

ISSN:0002-8606    

DOI:10.1029/EO065i009p00078

年代:1984

数据来源: WILEY