Could we find indications of former free energy systems out of forms of ancient objects?

 Just as is visible from old excavation other discovered artifacts, like the Anunnaki objects (Sumerian). 

Ancient Vajra Free Energy system with 2x4 high current sparks creation for 2x ball lightnings (Herbig Haro) and 2x Birkeland ZPE electric current circuits in the laboratory.  see Q-FFF Theory, free vacuum energy.   https://www.researchgate.net/publication/342048419_Free_Vacuum_Energy_from_two_Negative_Charged_Black_Holes_string_knots_in_an_electric_adapted_modern_VAJRA

Micro photon interference Black Hole Ball Lightning nucleus ( or photon Knot) with a negative extern charge and positive internal charge seems to be an old free energy mechanism of a Vajra configuration.