I read a few interesting tidbits in the article below
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Blue light LIDAR could scan through hundreds of meters of water.
"And being metal, submarines have an effect on the Earth’s magnetic field, another potential giveaway. Flying drones equipped with new sorts of magnetometer could make submarine-hunting easier."
"Employing longer wavelengths of sound than most sonars, and taking advantage of lightning-fast processing power, it is possible to create time-lapse movies of sea life (and presumably submarines) over tens of thousands of square kilometres."
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It's interesting as it could render current submarine fleets obsolete.
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Blue light LIDAR could scan through hundreds of meters of water.
"And being metal, submarines have an effect on the Earth’s magnetic field, another potential giveaway. Flying drones equipped with new sorts of magnetometer could make submarine-hunting easier."
"Employing longer wavelengths of sound than most sonars, and taking advantage of lightning-fast processing power, it is possible to create time-lapse movies of sea life (and presumably submarines) over tens of thousands of square kilometres."
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It's interesting as it could render current submarine fleets obsolete.