• Baggie@lemmy.zip
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    5 hours ago

    I’m sure this is real, but I see a headline like that and I think of schoolyard talk. Like, nuh uh, my armour has 100 trillion bonds, you can’t shoot me.

  • inconel@lemmy.ca
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    4 hours ago

    I skimmed the article, scrolled down but people hasn’t mentioned its mechanically Chain mail in atomic scale yet? Did I read it wrong?

    • Zron@lemmy.world
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      11 hours ago

      Good news, it’s completely non toxic.

      Bad news, it costs 2 million dollars per square foot.

      The pentagon will now take your whole paycheck.

      Thank you for your support, patriot.

      • HEXN3T@lemmy.blahaj.zone
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        9 hours ago

        Good news, it costs 2 million dollars per square foot, so they won’t militarise the police further with it.

        • IphtashuFitz@lemmy.world
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          9 hours ago

          Well not immediately… Years from now when the military develops something even better then this will all become surplus and sold off to SWAT teams etc. for next to nothing.

    • Phoenixz@lemmy.ca
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      9 hours ago

      With these bonds so dense, I want to imagine that it would actually be quite non-toxic as these is little to react with.

      Then again, I’m not a bio chemist

    • chaogomu@lemmy.world
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      7 hours ago

      Hardness isn’t the best thing to have in armor. In fact, extreme hardness means extreme brittleness.

      Tensile strength is more desirable in armor. That’s the sort of strength that a string or rope, or Kevlar will have.

      Those can stretch a bit before breaking.

      Kevlar will stretch a bit when catching a bullet, this does a few things, but importantly it slows the bullet before stopping it.

      So this new material will likely show extreme tensile strength rather than hardness.

      • CoffeeJunkie@lemmy.cafe
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        5 hours ago

        Correct. 🙂 Reminds me of when I wanted new tires & I was complaining about how some tires were rated for a criminally short life. I wondered which ones lasted the longest.

        The mechanic then remarked that sure, they can make tires that last a hell of a long time & never puncture. But the ride would be so terrible because the tires would be tough, stiff, would work your suspension harder, and it would cost a fortune to boot. It’s not worth it. There are multiple material, usage considerations when making a product. Really makes you appreciate the experts in their various fields.

  • HelixDab2@lemm.ee
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    20 hours ago

    I don’t know if this will actually pan out the way that they imply in the title; armor needs to have a lot of different characteristics in order to be practical. As in, resistance to heat and cold, resistance to acids, alkalines, petroleum distillates, salts, UV, and oxygen, and also resist deformation. Multiple materials have displays significant promise for armor, but had a very short lifespan in real-word conditions. For instance, there was a material trademarked as Zylon that was supposed to be better than Kevlar, and it was used extensively by Second Chance (a body armor company); several cops were killed when their armor failed, and the armor failed because of exposure to sweat and ambient heat.

    Yeah, this is a super cool development, but remember that everything that comes out at this stage is hype.

    • Echo Dot
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      14 hours ago

      The armor works perfectly fine as long as it’s not exposed to oxygen. But when’s that ever going to happen?

      • MDCCCLV@lemmy.ca
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        9 hours ago

        That by itself isn’t terrible, that could still be used if it is sealed in something like an era brick if it’s good enough.

    • Soleos@lemmy.world
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      15 hours ago

      Yes… that’s why they use the word “could”. This is how research works and what reasonable science reporting looks like. There were no promises or wild claims made in the article.

      • HelixDab2@lemm.ee
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        16 hours ago

        It really depends on whether it can be made to meet all the other criteria required for armor. I think that it’s too early to make any good predictions.

      • nul9o9@lemmy.world
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        11 hours ago

        My favorite part was when he held the jacket up like a curtain. The material may be bullet proof, but the bullet will still push it out of the way like that lol.

        • OhVenus_Baby@lemmy.ml
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          6 hours ago

          Same with the Fast&Furious it used to be about import vs muscle and real street racing. Then it became jumping hyper cars from falling buildings to the next building over and turned to shit. Like most over milked series.

          • NotMyOldRedditName@lemmy.world
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            6 hours ago

            Waiiiit, was it actually meant to be about import vs muscle, like that was it’s intention? Or did they just happen to do that.

    • catloaf@lemm.ee
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      1 day ago

      I don’t know if I’d call materials science technology, exactly, but it’s certainly more on topic than “business but at a tech company” posts.

      • ebolapie@lemmy.world
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        10 hours ago

        What would you say is technology? Materials science isn’t technology, but what about things made out of the materials created by materials science?

      • Echo Dot
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        14 hours ago

        Yeah, everyone knows that technology only involves computers and they’re basically just made out of metal and not some fancy material.

    • Quadhammer@lemmy.world
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      15 hours ago

      I think I remember reading that a structure strong enough would have to be wider than the earth

      • Nighed
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        13 hours ago

        The stronger the material the thinner it could be.

        There are a lot of properties in the word ‘stronger’ though.

      • pahlimur@lemmy.world
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        15 hours ago

        Extreme doubt on strong enough. The author of this article barely understands the words they are using. Cool it strain hardens, so do so many other materials. Cool it’s tough like many other materials. Wow it has more links than others. No actual numbers about toughness, yield, ultimate strength, cycle limits, etc. It’s great research, but it absolutely isn’t going to magically solve the space elevator issue.

          • pahlimur@lemmy.world
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            14 hours ago

            Any company will market that its ideas are possible. The article you linked is promising, but take it with a huge grain of salt. They are moving the goalposts the whole article. Flat graphene is a great material for space elevators, but it can’t currently be created without defects. Polycrystaline means the graphene created includes defects sort of. It means the graphene they created that is km’s long has shitloads of places where cycle loading will cause it to fail way under (like 10%) of its expected load carrying capacity.

            Edit: I want this technology to exist. My MS in mechanical engineering focused in materials science tells me we are quite far from it happening.