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A comment on More than 19,000 undersea volcanoes discovered. Parent comment

Re:More than 19,000 undersea volcanoes discovered by bheadmaster on Saturday April 22, 2023 @05:32AM (#35664786)
What about using a pressure sensor fixed to a long pole in front of the submarine? That way, if they hit anything, the pole would hit first, and could activate the stopping mechanism.
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Re:More than 19,000 undersea volcanoes discovered by adastra22 on Saturday April 22, 2023 @06:30AM (#35665075)
These things can't stop on a dime.
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Re:More than 19,000 undersea volcanoes discovered by bheadmaster on Saturday April 22, 2023 @06:50AM (#35665189)
How long would the pole have to be to stop a 40mph submarine?
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Re:More than 19,000 undersea volcanoes discovered by adastra22 on Saturday April 22, 2023 @07:04AM (#35665280)
You could probably find the data you need here:

https://core.ac.uk/download/pdf/36725639.pdf

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Re:More than 19,000 undersea volcanoes discovered by hutzlibu on Saturday April 22, 2023 @07:35AM (#35665479)
Imagine swimming with a long pole attached to the front of you. Even if it would be thin, it would still disturb you very much. Also the disturbances in the water created by the pole would make noise, that can be detected.

Submarines are optimised in everything for absolute stealth, up to the point that the crew may not make any noise, like dropping a wrench.

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