i learned about R.R. Rife and his multifrequency pathogen killer in about 1995, along with some interesting material on Wilhelm Reich, George Lakhovsky, Dr. Alexander Golod, and Antoine Prioré.
Prioré is one of the most interesting, but about whom i can find the least information. his idea, and actual working machine, was to use phase conjugate, time reversed waves to reverse the effects of aging and disease in the time domain. i think much more knowledge has been suppressed than we will ever know.
these phase conjugate, time reversed waves, sound like craziness. one has but to do a simple search to find the amazing amount of information available. this has been known about since 1904, with E.T. Whittaker's work on scalar or longitudinal electromagnetic waves.
there is so much amazing knowledge out there. i applaud your openness of mind. thank you.