Rodger L. Gamblin

Comments on the Classical Theory of Magnetic Monopoles

The classical theory of electromagnetism including magnetic monopoles is formulated in terms of harmonic functions. The fact that there is no consistent action‐integral formulation of the field that yields both particle and field equations for both electric and magnetic charges is discussed in detail. It is seen that a consistent formulation can be developed through an action integral, but, in such a development, a monopole does not have what has been considered to be an appropriate interaction with either an electric charge or another monopole.

A High-Speed Threshold Memory Element

Abstract—This note describes a new analog-memory or variable- weight device that can be set to any of 100 stable states and switched between states in 100 ns or less. The device uses the coupling between a circularly polarized microwave signal (as generated by a helical structure) and a partially switched ferrite core.

An Analysis of High-Speed, Linear-Passive Binary, Read-Only Stores

Abstract—A general analysis of conventional high-speed, linearpassive, binary, READ-only stores is performed by the application of the scattering-matrix formalism. It is found that for a broad class of cases, which include most READ-only stores that have been discussed in the literature, the maximum transmission of power from a word driver to a sense amplifier is one divided by the number of bits stored in the memory. Other types of stores are considered that do not suffer from such a severe power degradation, but these appear to be pattern-sensitive.

Four-space hyperfluid flow as a model of electromagnetism

Abstract A formal model of the electromagnetic field, which is based upon the equations of ordinary three-space incompressible, inviscid, rotational fluid flow, is introduced. This model is a four-space theory which, however, reduces to the three-space picture of fluid flow in any three-dimensional subspace of four-space. It is for this reason that the entity considered by the model is called a four-space hyperfluid. Vector operations and fluid concepts are defined in four-space according to their reduction to customary concepts in three-space. It is found that if the electromagnetic field four-potential is considered to be the velocity potential for the four-fluid, the electromagnetic field arises as the rotational flow of this fluid. Two of Maxwells equations arise from the four-space identity div curl A = 0, and the other two arise from curl curl A , provided charge and current are considered to be regions of four-space flow vorticity. The energy-momentum relations of the electromagnetic field arise from considering the forces associated with vortex flow of the fluid in any three-subspace. The model is not an ether theory since electromagnetic radiation arises from the space metric and not from any assumed compressional or inertial properties of the fluid. The model is not related to the flow of a relativistic fluid because the velocity is a second-rank tensor and not a vector field.

An analytical method of determining pole locations of certain types of feedback amplifiers

The pole locations of feedback amplifiers of an arbitrarily large number of stages, but with only one or two characteristic time constants, can be solved analytically. The resulting expression is then general for all of one class of amplifiers. A solution of the case of n stages of one time constant and m stages of another with n/m ≫ 1 is presented. The case with m = 1 and with ideal matched transmission lines in the loop is also solved. Other cases presented are for m = 0 and m = n. The analysis is shown to be good for high- or low-frequency investigations where the system bandwidth is broad enough to prevent high- and low-frequency response interference.