Scientific American (December 2005)
Coauthors: William H. Hannum and George S. Stanford
Reprinted in Oil and the Future of Energy by The Editors of Scientific American Magazine (The Lyons Press, 2007), p. 98.
Fast-neutron reactors could extract much more energy from recycled nuclear fuel, minimize the risks of weapons proliferation and markedly reduce the time nuclear waste must be isolated. (PDF)
This Critique builds on A Global Warming Primer. Like the Primer, its purpose is to help the reader determine whether our understanding of the earth’s climate is adequate to predict the long-term effects of carbon dioxide emissions from the continued burning of fossil fuels, to permit informed public policy decisions. This is a limited critique, looking only at a few topics covered in the latest report of the Intergovernmental Panel on Climate Change (IPCC).
The purpose of this primer is to help the reader determine whether our understanding of the earth’s climate is adequate to predict the long term effects of carbon dioxide released as a result of the continued burning of fossil fuels.
With Craig Eisendrath and Melvin A. Goodman.
Although the threat to the U.S. should not be ignored, it does not justify the rush to deployment of national missile defense systems.
USA Today Magazine (September 2001) PDF.
Praeger Press 2001
A Project of the Center for International Policy
Coauthors: Craig Eisendrath and Melvin A. Goodman
Like President Reagan with his “Star Wars” program, President Bush has again made national missile defense (NMD) a national priority at a cost which may exceed $150 billion in the next ten years. Defense experts Eisendrath, Goodman, and Marsh contend that recent tests give little confidence that any of the systems under consideration—land-based, boost-phase, or laser-driven—have any chance of effective deployment within decades. The interests of the military-industrial complex and the unilateralist views of the Bush administration are driving NMD, not a desire to promote national security.
Rather than increase U.S. security, the plans of the current administration, if implemented, will erode it. NMD will heighten the threat from China and Russia, alienate key allies, and provoke a new arms race and the proliferation of nuclear weapons, all in response to a greatly exaggerated threat from so-called “rogue states,” such as North Korea and Iran. Thoughtful diplomacy, not a misguided foreign policy based on a hopeless dream of a “Fortress America,” is the real answer to meeting America’s security goals. Designed to stimulate interest and debate among the public and policy-makers, the Phantom Defense provides solid facts and combines scientific, geopolitical, historical, and strategic analysis to critique the delusion of national missile defense, while suggesting a more effective alternative.
Erratum: p. 86, 2nd full paragraph: The first sentence should read: “Even with nuclear-tipped interceptors it was clear, as early as the 1960s, that, in the words of John S. Foster, Jr. of Lawrence Livermore National Laboratory, the system would . . . limited time available for intercept.”
Topology in Electromagnetics is a chapter in Frontiers in Electromagnetics, edited by Douglas H. Werner and Raj Mittra (The Institute of Electrical and Electronics Engineers, Inc., 2000).
The link to the book is:
http://www.amazon.com/Frontiers-Electromagnetics-Series-Microwave-Technology/dp/0780347013
Physics Letters A Vol. 262, pp. 257-260 (1999)
Coauthor: Charles Nissim-Sabat
Comment on an article by Van Flandern on the speed of gravity. Van Flandern argues that the speed of gravity must be greater than 2 X 10^10 c. We show this is not the case.
J. Phys. A: Math. Gen. 31 (1998) 7077-7094 (PDF)
The topology assumed by most authors for a spacelike hypersurface in a spacetime containing a monopole is generally Euclidean 3-space minus the origin; save for the spherical surface isolating the monopole, this space is unbounded. For such a topology, a consistency relation of de Rham’s theorems shows that a single isolated monopole cannot exist. Monopoles, with charge +/- m, if they exist at all, must occur in pairs having opposite magnetic charge. An extension of de Rham’s theorems to non-Abelian monopoles which are generalizations of Dirac monopoles (those characterized by the first homotopy group of G, the fundamental group of the gauge group G) is made using the definition of an ordered integral of a path-dependent curvature over a surface. This integral is similar to that found in the non-Abelian Stokes theorem. The implications of de Rham’s theorems for non-Abelian monopoles are shown to be similar to the Abelian case.
World Publishing Co. Pte. Ltd. 1996
After an introductory chapter concerned with the history of force-free magnetic fields, and the relation of such fields to hydrodynamics and astrophysics, the book examines the limits imposed by the virial theorem for finite force-free configurations. Various techniques are then used to find solutions to the field equations. The fact that the field lines corresponding to these solutions have the common feature of being “twisted”, and may be knotted, motivates a discussion of field line topology and the concept of helicity. The topics of field topology, helicity, and magnetic energy in multiply connected domains make the book of interest to a rather wide audience. Applications to solar prominence models, type-II superconductors, and force-reduced magnets are also discussed. The book contains many figures and a wealth of material not readily available elsewhere.
(Force-Free Magnetic Fields at Amazon)
pdf:
Marsh_Force-Free_Magnet_Fields_Solutions_ Topology_ Applications
Helicity and Electromagnetic Field Topology is a chapter in Advanced Electromagnetism: Foundations, Theory and Applications, edited by Terence W. Barrett and Dale M. Grimes (World Scientific, 1995).
Link to the book:
http://books.google.com/books/about/Advanced_Electromagnetism.html?id=lA8tgLMRu2kC