> The models process imagery, they detect submarines, geo-locate them, and then determine any movement since the last collection passed, all in under a second," she claimed.
Generally speaking, when submarines don't want to be detected they can stay underwater for long periods of time, where they cannot be detected by satellite.
China has an underground port for submarines on Hainan island, specifically to prevent counting the total number of submarines, and how many are in port.
Biting the hand that feeds IT
