"Tesla had big ideas, and he was quickly advancing with his theories. In 1938, e talked about two incredible discoveries.1. The Dynamic Theory of Gravity – which assumed a field of force which accounts for the motions of bodies in space; assumption of this field of force dispenses with the concept of space curvature (ala Einstein); the ether has an indispensable function in the phenomena (of universal gravity, inertia, momentum, and movement of heavenly bodies, as well as all atomic and molecular matter); and,
Environmental Energy – the Discovery of a new physical Truth: there is no energy in matter other than that received from the environment. Which contradicts Einstein’s E = mc2."
https://shiftfrequency.com/tesla-antigravity-technology/
"In 1897, when Tesla presented his Dynamic Theory of Gravity, he said that all bodies emit microwaves whose voltage and frequency are determined by their electrical contents and relative motion.
Over one hundred years ago, Nikola Tesla managed to measure the microwave radiation of our planet and concluded that it is only a couple of centimeters in wavelength.
Tesla continues saying that the frequency and voltage of earth’s microwave radiation were influenced greatly by the velocity and mass of our plant. The gravitational interaction with other celestial bodies like the sun was determined by the interaction of the microwaves between the celestial bodies."
https://www.ancient-code.com/nikola-tesla-ether-antigravity-and-harnessing-the-power-of-the-universe/
"As an alternative to Albert Einstein's theory of relativity, Tesla did not accept Einstein's theory equating matter into energy and the converse. The Dynamic theory of gravity was developed initially between 1893 and 1894. The theory reportedly states that the phenomena produced by electromagnetic force is most important phenonomen in the universe.
According to pieces of this theory that can be gathered, mechanical motions are a universally a result of electromagnetic force acting through the mediums. It is the concept that a field of force models phenonomen more precisely. It did not include the curvature of space. This theory is a logical extension of the rotating magnetic field model. The theory refers to an aether similar in terms to conventional electromagnetics. Tesla's aether is not analogous to classical aether theories. Sir William Thomson's (i.e., Lord Kelvin) explanation of the aether corresponds closely to Tesla's views of the aether. Tesla's aether are more akin to sound waves. Its properties varied according to velocity, frequency, resonance, the mediums, and the surrounding environment.
Tesla electromagnetics are composed of space-time potentials and their corresponding motion. This potential's motion caused in the surrounding mediums an equivalent and opposite effect (determining the positive and negative character of the medium)."
http://www.fact-index.com/d/dy/dynamic_theory_of_gravity.html
"According to Tesla’s lecture prepared for the Institute of Immigrant Welfare (May. 12, 1938), his “Dynamic Theory of Gravity” was one of two far reaching discoveries, which he “…worked out in all details”, in the years 1893 and 1894. The 1938 lecture was less than five years before his death.
More complete statements concerning these discoveries can only be gleaned from scattered and sparse sources, because the papers of Tesla are concealed in government vaults for “national security” reasons. When I specifically asked for these papers at the “National Security Research Center” – now the “Robert J. Oppenheimer Research Center” – in 1979, I was denied access because they were classified, even though on that same day I discovered the plans for the hydrogen bomb on an open shelf, and told a Harvard graduate student about it later in the day at a Santa Fe restaurant. The guy went to Los Alamos, copied the plans, and wrote an expose at Harvard.
In his 1938 lecture, Tesla said he was progressing with the work, and hoped to give the theory to the world “very soon”, so it was clearly his intent to “give it to the world”, as soon as he had completed his secret developments."
https://www.aetherforce.energy/teslas-dynamic-theory-of-gravity/
"Nikola Tesla's dynamic theory of gravity is reported to be Tesla's attempt to formulate a theory relating gravity and electromagnetism, i.e. a unified field theory. Mathematical details of the theory are unavailable, as Tesla never published them, and there is no evidence that Tesla ever worked them out (besides his own testimony). Because of this, as well as the achievements of Albert Einstein's theory of general relativity, Tesla's theory was never accepted by physicists."
https://academickids.com/encyclopedia/index.php/Dynamic_theory_of_gravity
"The Dynamic Theory of Gravity of Nikola Tesla explains the relation between gravitation and electromagnetic force as a unified field theory (a model over matter, the aether, and energy). It is a unified field theory to unify all the fundamental forces (such as the force between all masses) and particle responses into a single theoretical framework."
https://themillenniumreport.com/2016/01/teslas-dynamic-theory-of-gravity/
"When Tesla was 82, instead of speaking at a dinner party, he issued a written statement:
“I have worked out a dynamic theory of gravity in all details and hope to give this to the world very soon. It explains the causes of this force and the motions of heavenly bodies under its influence so satisfactorily that it will put an end to idle speculations and false conceptions, as that of curved space. According to the relativists, space has a tendency to curvature owing to an inherent property or presence of celestial bodies.
“Granting a semblance of reality to this fantastic idea, it is still very self-contradictory. Every action is accompanied by an equivalent reaction and the effects of the latter are directly opposite to those of the former. Supposing that the bodies act upon the surrounding space causing curvature of the same, it appears to my simple mind that the curved spaces must react on the bodies and, producing the opposite effects, straighten out the curves.
“Since action and reaction are coexistent, it follows that the supposed curvature of space is entirely impossible – However, even if it existed it would not explain the motions of the bodies as observed. Only the existence of a field of force can account for them and its assumption dispenses with space curvature. All literature on this subject is futile and destined to oblivion.”"
https://www.unariunwisdom.com/teslas-dynamic-theory-of-gravity/