• After America abandoned development of its ‘dream shell’, Chinese scientists now claim they have managed to create it
  • The shell travels at Mach 7 while receiving satellite navigation signals and maintains an error margin of less than 15 metres (49 feet)

source URL (paywalled): https://www.scmp.com/news/china/science/article/3249048/chinese-scientists-bring-us-navys-dream-bullet-life

  • P1d40n3 [he/him]
    ·
    6 months ago

    Surely this advantage will make the US see the folly of war with China. and instead pursue a path of peace and win-win-cooperation.

  • citrussy_capybara [ze/hir]
    ·
    edit-2
    6 months ago

    https://archive.is/oEEO9

    In the paper, Feng and his colleagues disclosed a novel antenna design that can resist strong electromagnetic radiation while receiving high-precision positioning signals from the BeiDou military frequency band.

    They also provided detailed information on the special internal structure of the BeiDou signal receiver. During the launch of a shell, this receiver endures a force exceeding 25,000 times that of Earth’s gravity. Any flaw in its construction, such as the disconnection of wire interfaces, could lead the shell astray. Also, as the shell hurtles through the air, it generates intense heat due to friction. To counter this, the Chinese scientists used a cost-effective, mass-produced aerogel – a remarkable feat of engineering – as a thermal barrier.

    The navigation software for the weapon posed another significant hurdle. Unlike the steady course a vehicle takes on a road, shells whirl and sway erratically during flight, especially when altering course in varying air densities. To mitigate this issue, the team devised a straightforward, yet potent, algorithm that ensures uninterrupted satellite communication throughout the shell’s trajectory.

    Papers published by Chinese military scientists in open academic journals undergo rigorous security checks. It is unclear why China chose to disclose this progress at this time.

    “Why would China open science instead of hiding tech like amerikkka?”

    • GaveUp [she/her]
      ·
      6 months ago

      This is great, it doesn't really matter that much if US can copy this technology because they already have complete dominance on naval power projection and artillery superiority against 99% of the world. The more countries opposed to US that can build this technology, the smaller America's military advantage becomes

    • emizeko [they/them]
      hexagon
      ·
      edit-2
      6 months ago

      the post link is an archive URL: https://archive.is/ki9Dp

      • citrussy_capybara [ze/hir]
        ·
        6 months ago

        ah, didn’t notice, Lemmy needs to be better with showing links/previews from links like archives

        • emizeko [they/them]
          hexagon
          ·
          6 months ago

          yeah I probably should have posted the SCMP URL for the preview and put the archive link in the body text

    • RyanGosling [none/use name]
      ·
      5 months ago

      I mean I’m sure it’s partially meant to brag and warn.

      Though the US government has a shortage of mandarin speakers and all their spies in china have been executed a few years ago, so the unit translating and interpreting these scientific articles must be very tiny and likely get little attention from the big brass. The majority of Americans will scoff because they believe that Chinese people still live in huts. It’s basically a futile attempt at bragging because China’s enemies are incompetent and victims of racism by their bosses lol

  • AnarchoAnarchist [none/use name]
    ·
    6 months ago

    Hezbollah took out a Patriot site with laser-guided artillery ammunition, China has GPS guided railgun ammunition.

    Before the US gave up on a similar concept, it was going to cost at least $800,000 per shell.

    • Des [she/her, they/them]
      ·
      6 months ago

      the U.S. MIC is finally running headfirst into the Great Wall of Grift.

      every other regional power will be using advanced smart weapons built with off the shelf Ali Express parts while the U.S. Empire is running the equivalent of ironclads (carriers) against dreadnoughts (smart/swarm weapons)

      • WayeeCool [comrade/them]
        ·
        6 months ago

        every other regional power will be using advanced smart weapons built with off the shelf Ali Express parts

        Biggest factor in cost is all the other regional great powers (China, Russia, Iran) have military industry under state enterprise while the US military industry is entirely privatized. The state enterprise military industry operates under supremacy of responsibility to the nation while the US privatized military industry has fiduciary responsibility to private capital as their only real responsibility. Under US law the corporate leadership of Raytheon, Boeing, Lockheed, and Northrop Grumman must follow a doctrine of shareholder supremacy and those shareholders are not the American people but a collection of private capital investment banks. It would be against US law for them to not make every effort (including buying politicians) to under deliver on contracts and milk every possible dollar from the US government.

  • bazingabrain [comrade/them]
    ·
    6 months ago

    so lets run it back:

    -the us failed to make a working hypersonic missile, china has a reliable domestic design.

    -the us gave up on railguns, china is achieving breakthroughs and will likely create a working design some day.

    -and now china again succeeded where the us quit.

    damn the us navy is really struggling huh

    • DamarcusArt@lemmygrad.ml
      ·
      6 months ago

      Damn, US obviously needs to up their military funding so they can develop these things! No wonder they're falling behind with such a paltry military budget, how are they expected to be competitive when they only have ten times the budget of their enemies? They need at least 20 times, or 30 times! The US should just close down public schools or something to afford it, it's not like those kids need to learn to read anyway, who even reads in the US these days?

    • RyanGosling [none/use name]
      ·
      edit-2
      5 months ago

      The U.S. made a breakthrough battery discovery — then gave the technology to China

      When a group of engineers and researchers gathered in a warehouse in Mukilteo, Wash., 10 years ago, they knew they were onto something big. They scrounged up tables and chairs, cleared out space in the parking lot for experiments and got to work.

      They were building a battery — a vanadium redox flow battery — based on a design created by two dozen U.S. scientists at a government lab. The batteries were about the size of a refrigerator, held enough energy to power a house, and could be used for decades. The engineers pictured people plunking them down next to their air conditioners, attaching solar panels to them, and everyone living happily ever after off the grid.

      "It was beyond promise," said Chris Howard, one of the engineers who worked there for a U.S. company called UniEnergy. "We were seeing it functioning as designed, as expected."

      But that's not what happened. Instead of the batteries becoming the next great American success story, the warehouse is now shuttered and empty. All the employees who worked there were laid off. And more than 5,200 miles away, a Chinese company is hard at work making the batteries in Dalian, China.

      The Chinese company didn't steal this technology. It was given to them — by the U.S. Department of Energy. First in 2017, as part of a sublicense, and later, in 2021, as part of a license transfer. An investigation by NPR and the Northwest News Network found the federal agency allowed the technology and jobs to move overseas, violating its own licensing rules while failing to intervene on behalf of U.S. workers in multiple instances.

      Now, China has forged ahead, investing millions into the cutting-edge green technology that was supposed to help keep the U.S. and its economy out front.

      UniEnergy Technologies sold a few batteries in the U.S., but not enough to meet its requirements [of selling a certain number of batteries to the US]. The ones it did sell, including in one instance to the U.S. Navy, were made in China.

  • WhatDoYouMeanPodcast [comrade/them]
    ·
    5 months ago

    Misleading title. I got excited that I might be able to obtain a weapon that destroys my internet persona so I could go outside and touch grass without ever looking back kiryu-pain