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Joined 2 months ago
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Cake day: April 24th, 2024

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  • I have seen PLA videos of basically an urban combat live fire on static targets.

    You get an absurd amount of keyholing at ranges that between 5 to 10 to 20 meters.

    Its possible this particular image is from a longer distance static range, but the keyholing problem seems to be quite widespread, irrespective of range.

    As has already been said, something is going seriously wrong with either the guns, bullets or both that are being mass produced for around a year now.


  • The QBZ family of rifles, both the older bullpup Type 95 and its variants, and the newer Type 191, fire a 5.8 x 42mm round, not the AK 74 ‘poison bullet’.

    While I am sure the PLA has tons of 47s, and 74s still in active use, their efforts to modernize have included introduction of and seemingly wide issuance of the QBZ 95 family since roughly the early 2000s, and more recently the Type 191.

    Usually when they do publicity videos or images, they like to show off the QBZ family.


  • Could keyholing of … seemingly this magnitude… be the result of basically laughably bad tolerances in internal barrel width, or perhaps the barrels are made of some kind of alloy that expands significantly from heat?

    I have only ever seen keyholing in western gun videos from basically burn downs… but even then after a barrel is nearing its end of life by manufacturer specs, its more common to get some kind of failure to feed, significantly decreased precision and only occasional keyholes.

    Maybe another possibility is similarly poor quality alloy of some kind used in the cartridge itself?

    Combination of all of these things?

    I remember seeing a fairly recent video of some kind of PLA MOUT type urban course… and you could see massive keyholing on targets that were like 5 to 10 meters away.

    The prevalence of it baffles me. Ive personally dealt with and seen misfires and jams of various kinds at ranges, but I’ve never even seen a keyhole occur in real life.


  • In my personal experience, basically no insurance in America is worth anything.

    Nothing you would actually need insurance to cover ends up being covered, or, it covers a huge portion of an absurd cost which is only so absurd because of basically a corrupt cost inflation feedback loop between insurers and providers that you end up personally paying prices that are absurd to all but the very well off.

    It ends up just being further cost requirements to basically exist, which means if you are poor fuck you, die.

    Oh you want to challenge your insurance and force them to actually cover something?

    Hire a lawyer! Those are cheap!





  • I grew up around Seattle and also with y’all.

    Of course, a lot of people say ‘you guys’ and either don’t care or have decided that it’s gender non deterministic because ya’ll is cringe and racist-coded.

    Never even heard of y’uys.

    Would that be pronounced Yaiz?

    ???

    Anyway, half of those questions I could have answered with half of the options given, as they’re all common enough that most people either know what they mean or use them… and then the other half of the questions were basically just one answer.

    EDIT: If anyone cares, easiest way in the world to tell someone is a California transplant is that they say ‘the 5’, not ‘I-5’. That is, for the ones who aren’t always telling you they are from California.

    EDIT 2: Is there some kind of map of where Americans do and do not raise the pitch of the last word or syllable in a sentence? You know, that makes it sound like a statement is actually a question?

    Its that weird tonal pattern that I have always found indicates a person is self centered and sheltered. I’ve known it as ‘Valley Girl Accent’ since I was a kid, and it only seems to be spreading.

    Apparently its called ‘High Rising Tone’?


  • Pack 100 of compsognathus (compsognathii?) says hello.

    Not sure how out of date the research is, but in the original Jurassic Park book, there are roaming packs of these things that overwhelm and kill people.

    Though the on screen scene of them killing people happens in the second movie, it actually takes place in the first book IIRC… anyway, they’re basically depicted as land piranhas.

    (Again, IIRC, Jurassic Park the book basically gets set in motion with a family of tourists being eviscerated by a pack of compys… but the first movie dropped this from the story, then when the second movie comes out they basically use this scene as the intro for that, but its on a different island and used to set off an entirely new story?)



  • sp3tr4l@lemmy.ziptoScience Memes@mander.xyzI just cited myself.
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    2 days ago

    There are a lot of concepts in mathematics which do not have good real world analogues.

    i, the _imaginary number_for figuring out roots, as one example.

    I am fairly certain you cannot actually do the mathematics to predict or approximate the size of an atom or subatomic particle without using complex algebra involving i.

    It’s been a while since I watched the entire series Leonard Susskind has up on youtube explaining the basics of the actual math for quantum mechanics, but yeah I am fairly sure it involves complex numbers.


  • The explanation I’ve seen is that … is notation for something that can be otherwise represented as sums of infinite series.

    In the case of 0.999…, it can be shown to converge toward 1 with the convergence rule for geometric series.

    If |r| < 1, then:

    ar + ar² + ar³ + … = ar / (1 - r)

    Thus:

    0.999… = 9(1/10) + 9(1/10)² + 9(1/10)³ + …

    = 9(1/10) / (1 - 1/10)

    = (9/10) / (9/10)

    = 1

    Just for fun, let’s try 0.424242…

    0.424242… = 42(1/100) + 42(1/100)² + 42(1/100)³

    = 42(1/100) / (1 - 1/100)

    = (42/100) / (99/100)

    = 42/99

    = 0.424242…

    So there you go, nothing gained from that other than seeing that 0.999… is distinct from other known patterns of repeating numbers after the decimal point.




  • Jesus fucking god.

    Anderson Cooper is talking to Kamala.

    After Kamala basically explains some actual achievements of the Biden administration while refusing to address Biden’s incoherence…

    Cooper says “Yes but neither candidate explained what you just said so succinctly and quickly.”

    This is after Kamala has been stalling for almost an hour. When she comes in screen she’s twirling her hair nervously and does it again, unable to even crack her immensely fake smile a single time.

    MSNBC and CNN basically are either in shock or reporting on the entire Democratic party being in shock.

    With MSNBC, after most of the panel talks about the possibility of Biden resigning Maddow just got into an argument with some other talking head over whether or not its possible for Biden to bow out, as the other person says yeah it actually is technically possible.

    To sum up, Cooper asked Kamala if Joe is like this all the time.

    She did not say no.

    What an astounding fuck up.


  • I think it was his third time speaking… he was answering one question on one topic and basically accidentally started talking about something else and then was visibly confused as he realized he was making no sense.

    I am legitimately going to need to read a transcript of this to figure out wtf he was talking about half the time.

    Like… Biden was just asked if his age would impact his presidency.

    His response was to mumble about being the youngest person in politics originally, and uh we are building more chip fab plants, and America is awesome.

    Trump is now answering the same question and is actually staying on topic for his entire answer though he’s lying a bit.

    And Joe just went back to mumbling about how Trump is actually 6 foot 4, or 6 foot 5, or well anyway he couldnt carry his bag while golfing.

    Yeah… Biden is very much coming across as a near senile grandpa and Trump is coming across far more well composed.


  • Yeah, its infuriating that punk has become a suffix.

    There is nothing punk about steampunk, dieselpunk, atompunk. They are just fantasy technological scenarios / art styles.

    Cyberpunk has an both a recognizable aesthetic and a whole lot of political, social and philosophical views baked into it. You get the punks in cyberpunk as either a direct ideological opposition to the power of corporations, or as an indirect result of said corpos creating a hell world for 99% of people.

    There is nothing inherently rebellious about worlds or characters within worlds with more prevalent / advanced steam or diesel or nuclear power.

    Solarpunk arguably has some actual punk to it if you actually try to follow the idea of personally minimizing your fossil fuel usage, but mostly its a utopian or post-dystopian setting / art style.

    Its now like -gate being affixed to any kind of publicized controversy.

    Most people do not understand what Watergate even was and why it was so significant.