Why did such a discovery become publicized??
It was publicized in SCMP here is an excerpt from the news. It is still a research project but it has a future
From AT with a link to the original SCMP post- And Chinese ship research journal link
China may have landed on a way to better detect stealth nuclear submarines, a development that could jeopardize US operations in the contested South China Sea and more significantly undermine the survivability of its underwater nuclear deterrent.
that researchers at the Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter discovered an ultra-sensitive submarine detector based on existing technologies that can detect traces of the most advanced submarine from great distances.
The science team, led by Zou Shengnan, published their findings in the
, run by the China Ship Scientific Research Center and noted for its history of being at the forefront of ship and ocean engineering developments.
SCMP notes that the Chinese science team used computer modeling to determine the possibility of detecting the near-imperceptible bubbles a nuclear submarine produces. It says that the extremely low frequency (ELF) signal generated by these bubbles could be many times stronger than the sensitivities of advanced magnetic anomaly detectors.
The bubbles form when a submarine cruises due to increased kinetic energy and a corresponding decrease in potential energy expressed as pressure. This happens because the system’s total energy remains constant but the balance between kinetic and potential energy shifts.
Here is the video explaining it in more detail
