Difference between revisions of "David Tombe"

Frederick David Tombe
Born 1958
Residence Belfast, Northern Ireland, United Kingdom
Nationality British
Scientific career
Fields Electromagnetism, Centrifugal Force, Coriolis Force, Aether, Gravity

Frederick David Tombe is a physics and applied mathematics graduate who attended Queen's University Belfast from 1978 to 1982.

Scientific Research in his own Words

I started electromagnetism in earnest in late 1981, and due to my newfound knowledge of vector field theory I was able to see that the modern textbook derivation of Maxwell's displacement current was totally unsatisfactory. James Clerk Maxwell was a nineteenth century Scottish physicist who is credited with having collectively formulated all the laws of electromagnetism, and in doing so having united electricity, magnetism, and optics into a single topic. During the winter of 1981-82 I was struggling with three aspects in electromagnetism which appeared to have no satisfactory explanations. I was asking the lecturers these three questions,

1. In the magnetic force F = qvxB, what is the velocity term v measured relative to?
2. Where can we see a formal proof of the theory of conservation of energy in connection with magnetic repulsion and attraction between bar magnets? I never doubted that energy is conserved in these cases, but I was having difficulty finding an appropriate expression for magnetic potential energy. The well-known magnetic vector potential did not answer the question. Apart from Lenz's law which touches on the issue, there seemed to be nothing in the textbooks relating to conservation of magnetic energy.
3. How is Maxwell's displacement current correctly derived? The textbook derivation of Maxwell's displacement current is highly dubious. It does not derive the transverse term which is used in the derivation of the EM wave equation, and even at that, the irrotational term which is being derived in its place, is being added as an extra term to Ampère's Circuital Law, rather than being extracted from within the already existing electric current term.

There was a tendency for the lecturers to say that it would all become clear when it is taken in conjunction with Einstein's theories of relativity, but I wanted to first know how these matters were resolved before relativity was invented, bearing in mind that Maxwell's equations were published before Einstein was born. On one occasion during that winter of 1981-82, when I questioned a lecturer as to whether there is anybody of renown in the physics world who questions the veracity of Einstein's relativity, he informed me that he had just been reading an article in the Nature journal concerning a certain late Professor Herbert Dingle and his objections to relativity on the grounds of the clock paradox. The article in question revisited an argument that had taken place in the early 1960s between Dingle and another professor called McCrea.