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Joined 1 year ago
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Cake day: June 21st, 2023

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  • Heard similarly bad stories from Scandinavia, of all places. If you’re vulnerable, it’s very easy to fall between the cracks, with doctors who abuse their power or make bad mistakes.

    Also, the replication crisis really undermines psychology’s claims to scientific knowledge.

    Of course, I’m not a scientologist, so I’m not going to claim that people shouldn’t go to see a mental health professional. Anti-depressants do work, therapy can and often does work, but as you say you really need to do your resaerch beforehand, and preferably have family or friends to defend your interests. Otherwise you’ll fall between the cracks just when you’re at your most vulnerable.

    Same goes for elderly homes. Personally, I think I’ll kill myself before I ever get that far. If you don’t have family to check up on you, you’re quite likely to be neglected, exploited or abused.












  • Some of it is also the nature of the fediverse. For example, you’ll sometimes see people complaining about having to see the same story multiple times.

    The exact same article will be posted on technology@lemmy.ml, technology@lemmy.world, technology@beehaw.org, etc. etc. Or you won’t get to see stories depending on which instance you’re using, because server A has chosen not to (no longer) federate with server B, which means you need an account with multiple networks to see the whole fediverse, despite the fediverse supposedly being interconnected.

    That’s off-putting to many users, but I don’t know if there’s a way to change that easily, because these kinds of things are arguably part and parcel of the fediverse.


  • This is one of the things you quoted:

    can only run silently in the electric-only mode, submerged. And because that’s off batteries, your submerged endurance is limited.

    Also in the article:

    So, unique to nukes, are a bunch of pumps, turbines, and reduction gears, which a diesel boat in battery mode doesn’t have at all.

    Ie. a diesel sub is quiet in electric mode, potentially quieter than nuclear subs because in battery mode there aren’t turbines or pumps whining away, even though that is for a limited time.

    Another example:

    Stirling engine is particularly well suited for a submarine because the engine is nearly silent and can use the surrounding sea water as a heat sink to increase efficiency. Submerged endurance is dependent on the amount of liquid oxygen stored on-board and is described as “weeks”. The class is characterized by its low acoustic signatures, extreme shock resistance, and a competent combat system. … The class has many features that enhance stealth, helping it to remain undetected. All shipboard machinery is isolated and mounted on rubber dampeners to reduce vibrations and noises; a hydrodynamic hull design reduces noise, infrared signature, and active sonar response. Its magnetic signature is counteracted by 27 independent electromagnets, short circuiting extremely low frequency (ELF) electrical fields. Various hull coatings reduce active sonar response, and the mast is coated with radar-absorbent material. Combined with the near-silent operation of the Stirling generator and slow-turning propeller to prevent cavitation, the boats are very difficult to detect under water, especially in their normal area of operations, the Baltic Sea

    https://en.wikipedia.org/wiki/Gotland-class_submarine

    The article goes on to say:

    In 2005, HSwMS Gotland managed to snap several pictures of USS Ronald Reagan during a wargaming exercise in the Pacific Ocean, demonstrating that it was in a position to sink the aircraft carrier.[11] The exercise was conducted to evaluate the effectiveness of the US fleet against diesel-electric submarines, which some have noted as severely lacking.

    TLDR: an advanced/modern diesel submarine is louder than a nuclear submarine in normal operation. Chugachugachugachuga. Then it goes into battery mode. It goes near silent, quieter than many nuclear submarines which still have turbines, pumps, etc. The diesel sub dissapears like a ghost. Torpedo away, too late.

    And that’s a relatively old sub. The French sub I mentioned is something like a decade newer, with newer and better batteries.