In the past four decades, the United States has spent $85 billion pursuing the fantasy of an effective missile defense system to shield our nation against the threat of a nuclear attack. Recent public tests, while less exotic than some of the original Star Wars proposals, were spectacular failures and call into question the whole program's rationale. Neither the land-based system proposed by the Clinton administration, nor the alternatives proposed by earlier administrations, would ever work--regardless of how much R&D money is channeled into the project. Rather than enhancing national...
In the past four decades, the United States has spent $85 billion pursuing the fantasy of an effective missile defense system to shield our nation ...
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...
After an introductory chapter concerned with the history of force-free magnetic fields, and the relation of such fields to hydrodynamics and astrophys...
