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Super Strong Metal Foam Discovered

MikeChino writes to tell us that a North Carolina State University researcher has discovered what appears to be the strongest metal foam yet, capable of compressing up to 80% of its original size under load and still retain the original shape. The hope is that this amazing material could be used in cars, body armor, or even buildings to absorb the shock from earthquakes. "Metal foam is exactly what you might think – a cellular structure made from metal with tiny pockets of space inside. What makes Rabiei’s metal foam better than others is that she’s been able to make the tiny pockets of space more uniform. And that apparently is what gives it the strength as well as elasticity it needs in order to compress as much as it does without deformation. Many tests are being performed in the laboratory to determine its strength, but so far Rabiei says that the spongy material has 'a much higher strength-to-density ratio than any metal foam that has ever been reported.' Calculations also predict that in car accidents, when two pieces of her composite metal foam are inserted 'behind the bumper of a car traveling at 28 mph, the impact would feel the same to passengers as an impact traveling at only 5 mph.'"

15 of 367 comments (clear)

  1. This solves my anti-alien transmissions helmet by Anonymous Coward · · Score: 1, Funny

    and underwear design problems! If we can just get some aluminum oxide mixed into the alloy...I'll be free, free at last!

  2. Re:How is it made? by Chris+Burke · · Score: 5, Funny

    Some hot metal, a tiny straw, and a guy who's really good at measuring his breaths.

    Needless to say, scaling is a problem.

    --

    The enemies of Democracy are
  3. Geroge Carlin by mollog · · Score: 5, Funny

    "...behind the bumper of a car traveling at 28 mph, the impact would feel the same to passengers as an impact traveling at only 5 mph,,,"

    George Carlin used to point out that if you put a large spike on the steering wheel so that the driver would suffer badly in a collision, the numbers of collisions would drop dramatically.

    --
    Best regards.
    1. Re:Geroge Carlin by RobVB · · Score: 3, Funny

      but the only way to assure yourself that you will never get in an auto accident, no matter how careful you are, is to not ever get into an auto.

      That's not true. You can still get hit by a car while riding your bicycle or walking on the sidewalk. Not getting into a car doesn't keep you safe from cars.

      The best way I can think of to assure yourself you will never get into a car accident is to shoot yourself in the head.

      Or jump off a bridge or a cliff so they don't find your body and get into a car accident on the way to the morgue.

      --
      I'd rather you rationally disagree than irrationally agree.
    2. Re:Geroge Carlin by idontgno · · Score: 4, Funny

      Aww, you got me there. How about if you never leave your mom's basement, and you arrange your furniture on the side of the basement away from the street? Would that work?

      Sorry. Off-road vehicles approaching from the middle of the block. Cars dropped from the back of transport aircraft and crashing through the roof and all intervening floors. Cars experiencing a freakish (vanishingly unlikely, highly improbable, probably only going to happen if someone triggers an Improbability Drive without shielding) spontaneous quantum teleportation from the street into the basement.

      It's like the Golden BB... if your number is up, it's up.

      I would imagine the best way to avoid a car accident is to have never been conceived. After all, for some people, having been conceived was itself a car accident.

      --
      Welcome to the Panopticon. Used to be a prison, now it's your home.
    3. Re:Geroge Carlin by Chris+Burke · · Score: 2, Funny

      Or are you aware of some precognitive ability that I am not?

      Yeah, I thought it was common knowledge! Tom Cruise was advertising them a while ago.

      Of course it's not terribly practical in most vehicles, having to carry around the three bathtubs for your precogs (you can try one but the accuracy goes way down). Plus the way they tell you things is pretty useless while driving. By the time the little wooden ball rolls down the machine and get carved, you look at it and it just says "You're about to die!" Thanks, precogs.

      --

      The enemies of Democracy are
    4. Re:Geroge Carlin by saider · · Score: 4, Funny

      Maybe we're all too stupid to live.

      You just summed up Carlin's work in that one sentence.

      --


      Remember, You are unique...just like everyone else.
    5. Re:Geroge Carlin by omnichad · · Score: 2, Funny

      You really want to be on the same side of your mom's basement as the street. If a car approaches at a good speed, it's going to land on the opposite side of the basement.

  4. Re:How is it made? by goffster · · Score: 2, Funny

    Think China, lots of guys, lots of straws.

  5. Re:NO NO NO NO NO by Red+Flayer · · Score: 5, Funny

    A piece of spongy metal will not protect the pedestrian, cyclist or child when 2 tons of monster truck plow into it.

    Au contraire! Some of the impact force will compress the foam, instead of compressing the child's head.

    My testing has conclusive shown that a child's head, impacted at 25 mph by a block of this foam, will compress only 3 inches, compared to 5 inches when hit by a piece of solid aluminum.

    Clearly this means that children will be 40% less dead when hit by a Canyonero driven by a soccer mom texting her neighbor's landscaper about getting her garden tilled*, provided that the Canyonero is equipped with this foam.

    *And by getting her garden tilled, I mean having her bushes trimmed**

    **And by having her bushes trimmed, I mean having bulbs planted***

    ****And by having bulbs planted, I mean having roots... oh screw it. I mean having a tryst.

    --
    "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
  6. Re:How is it made? by Chris+Burke · · Score: 4, Funny

    Damn, and we already shipped all of our tiny straw manufacturing over to China!

    --

    The enemies of Democracy are
  7. Re:NO NO NO NO NO by Chris+Burke · · Score: 2, Funny

    Clearly this means that children will be 40% less dead when hit by a Canyonero

    That might be enough for Miracle Max to work with!

    ****And by having bulbs planted, I mean having roots... oh screw it. I mean having a tryst.

    I'm still confused... What's a tryst? Are they perennials? What's this landscaper's number, I think I could use a tryst or two.

    --

    The enemies of Democracy are
  8. Re:Uniform fab by twidarkling · · Score: 3, Funny

    He's asking "what is the breakthrough," not "what is a breakthrough," which is a small difference, but crucial. What changed about the process, or in the concept behind the process that allowed the breakthrough to happen. That's the question posed.

    I suppose with your smartass answer, you're used to being able to coast through limited reading comprehension through application of "humour."

    --
    Canada: The US's more awesome sibling.
  9. Re:How is it made? by Hurricane78 · · Score: 2, Funny

    Nah. All you need is a straw-transistor: You blow in a small straw, which controls a huge turbine, blowing out of a bazillion straws into a bazillion glasses of fresh metal milk.

    --
    Any sufficiently advanced intelligence is indistinguishable from stupidity.
  10. Mythbusters! by fibrewire · · Score: 2, Funny

    "Can a car with magic foam in the bumper really make a 30mph collison feel like 5mph?"

    In the end - they blow up the foam!