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Radar is ineffective underwater because the radio waves are absorbed by the water. That is why there's no radar in use on submarines. Sonar is not a valid solu
by slapshot 1y ago
Radar is ineffective underwater because the radio waves are absorbed by the water. That is why there's no radar in use on submarines.
Sonar is not a valid solution here because it annoys the whales. Or at least high-power sonar, as used by the military, does. It would defeat the point.
- lupusreal 1y agoSonar is the solution; passive sonar using numerous hydrophones to chart the bearing of the whale. How that bearing changes over time allows you to deduce if you're on a collision course. This is tech developed by the military.