John Keely, Sonoluminescence & Radiation Pressure

"A major question right up front: Is there really sufficient energy in water hammer or cavitation to drive a prime mover type device? The answer is a resounding YES! The following contains engineering and physical substantiations of this premise."

"In fact the only known book on cavitation is replete with disclaimers insofar as scientific explanations of the observed phenomena found in cavitation processes. The orthodox engineers do not know where all the extra energy is coming from. And they have measured energy releases in the order of 8,000K during bubble collapse. As has just been explained - the extra energy is released from the sub-atomic realms during phase changes of the fluids under hammer or cavitation processes."
https://www.svpvril.com/JKMot2.html

The Mysteries of Sonoluminescence Explained!

"Keely blew into a nozzle for half a minute, then poured five gallons of tap water into the same nozzle. After some adjustments a pressure gauge indicated pressures of 10,000 psi"

"Keely claimed that his apparatus would generate his "vapor" from water solely by mechanical means without using any chemicals and claimed to be able to produce 2,000 psi in 5 seconds.[5]"

"Keely told them that it was in fact "etheric vapor", adding "It ain't compressed air or any vapor having substance." The force was then used to lift some weights, and Keely claimed that he had about 22,000 psi of pressure at his disposal.[4]"

"On 26 March 1886 Keely performed a demonstration before a committee of scientists and engineers from New York, where he obtained a pressure of 2,700 psi apparently by using a single pint of water, and then doubled the pressure by adding more water. Keely claimed that the "etheric force" by which these results were obtained would be utilized as fully as possible in the 25,000 hp engine on which he was then working.[25]"

"he had abandoned "etheric force" in favour of a new force which was unnamed but which he said was based on "vibratory sympathy".[26]"
https://www.rexresearch.com/keely/keely.html