In 1997, he self-published experimental results that confirmed classical electromagnetism and disproved that a machine he had constructed could be a source of perpetual motion.

On 15 July 1997, Marinov jumped to his death from a staircase at a library at the University of Graz after leaving suicide notes.

Marinov planned to develop an updating of the relativistic mechanics and electrodynamics, as described in his self-published book Eppur si Muove.

He retaliated by securing the funds to place a full-page advertisement in Nature expressing his frustration with what he regarded as the dogmatic attitude of the establishment.

[23][24] Marinov claimed to have seen in operation and learned the secret of the so-called "Swiss ML converter" or Testatika electrical generator, another alleged perpetual motion machine, at a religious commune in Switzerland called Methernitha.

[3] According to Marinov's account, this 500-member commune, led by religious leader Paul Baumann, met all its energy needs using this device.