Little bubbles could reveal the location of nuclear submarines. This happens because the system’s total energy remains constant but the balance between kinetic and potential energy shifts. The bubbles form when a submarine cruises due to increased kinetic energy and a corresponding decrease in potential energy expressed as pressure. 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. SCMP notes that the Chinese science team used computer modeling to determine the possibility of detecting the near-imperceptible bubbles a nuclear submarine produces. The science team, led by Zou Shengnan, published their findings in the peer-reviewed Chinese Journal of Ship Research, run by the China Ship Scientific Research Center and noted for its history of being at the forefront of ship and ocean engineering developments. ![]() This month, South China Morning Post (SCMP) reported 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. 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.
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