Members of the NPA praise Dr. Lucas scientific work, reason enough to buy the first volume of his four volume work (The Universal Force). To orientate myself in any new work I usually read the opening and closing paragraphs of chapters and interspersed random bits that have caught my attention while scanning through the book. The typesetting and general layout was a bit confusing and inconsistent.
Nevertheless, the content is the essence, not the appearance. Lucas, in Chapter 4, makes his first important assertion, quote: Equation (4-44) is the derived version of the electrodynamic force for an elastic finite-size charged particle to order in Galilean transformation. The factors typically identified with Special Relativity Theory are found to originate from finite-size electrical feedback effects, nonlinear effects, and conservation of energy and momentum. The last sentence is ambiguous: Is dependent on only one of the three cases under certain circumstance, or dependent on varying combination of the three cases?
Let’s derive Equation (4-44) on Page 92, the page can be viewed by clicking on the thumbnail to the left. We start with the Equation (4-43) now renamed to (1) and (2) and we assume these to be correct. (1) (2) (3) (4)
The correct development of (3) is (5) (6) (7) (8) (9)
using (1) to express in terms of
(9)from which Lucas’ Equation (4-44), that is Eq. (4) above, cannot be derived!
Four pages on, Lucas writes: The generalized potential energy corresponding to equation (5-1) [which is the same as his (4-44)] for the electrodynamic force that is accurate to order in the Galillean transformation is (10)
At this point I closed the book since the work that followed was based on this flawed mathematics, there was no need for further review. Mathematics is the final arbitrator; the Eq. (10), which is (5-4) on page 96, is also mathematically incorrect. One can only square real and complex numbers, one cannot square, or take square roots, of vectors!
Lucas’ booked is filled with these and similar errors, therefor I cannot take this book seriously and consequently recommend others to dismiss it too.