How does the "Machine" du Prioré work?
The great difficulty was that no one-including Prioré himself- understood the actual active mechanism produced by the machine.
Prioré mixed several ordinary transverse EM radiations-some at radar frequency and some at microwave frequency-in a plasma tube containing a rotating plasma. Today it is known that some plasmas will organize longitudinal waves when transverse waves are input, and vice versa. Apparently he was able to produce at least "noisy" longitudinal EM waves. These waves were "infolded" inside pulsed magnetic field carriers-quite strikingly analogous to Whittaker's theoretical work. So he did indeed use-at least to some extent-the still unexplored "inner Whittaker electrodynamics".
The mechanism is a dramatic extension to nonlinear optics, moving it to the time-domain, and resulting in the forced propagation of the pumped cellular mass itself-including the genetics-in the time domain. Hence the damaged or diseased cellular mass is slowly reverted back to a previous earlier state. There is no 3-spatial propagation; the propagation is shifted to the time domain entirely. It involves the hidden, very powerful general relativity in the "inner space" underlying the present EM (Electro Magnetic) fields,
The papers by Rodrigues and Lu on the Los Alamos National Laboratory web site, and also in Foundations of Physics, summarize the present theoretical development of what is called "undistorted progression waves" (UPWs), which essentially are "noisy" longitudinal EM waves with residues of other polarization. A pure longitudinal wave with no transverse component residues, would have infinite energy and infinite velocity. Real LWs with transverse component residues, may travel at either subluminal or superluminal velocities.