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A great improvement to the decades old sonar buoys, these
can fly themselves into place in a massive grid of thousands
of square miles and unlike conventional drop buoys, fly
back to be reused.
If this isn't being done now, it will be in the future.
[link]
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Several dozen?, hand manufactured somewhere by people hunched over soldering irons. |
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Maybe Huawei can make them cheaply, in quantity... |
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