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All of their research was involving the 20nm thick materials along with micro-bullets of glass beads. It was from their ability to research at this tiny thickness that led them to be able to produce a hockey puck size piece of material that the 9mm bullets were actually fired at. If you go to this article[^], there is a picture of the clear material with the bullets now embedded within it. It is very cool indeed and the concept of self-healing "skin" doesn't seem to be far away. Don't the T-9000s need that?
Chris Meech
I am Canadian. [heard in a local bar]
In theory there is no difference between theory and practice. In practice there is. [Yogi Berra]
posting about Crystal Reports here is like discussing gay marriage on a catholic church’s website.[Nishant Sivakumar]
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May have caught the bullet, but if the energy is not disipated, it will still penetrate, break bones, etc. What would be needed is to spread the energy over a large area so it does not cause large amounts of localized damage. Bullet would still hurt like hell.
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Apparently the energy is absorbed in the multi-layer material and some of it melts and more is deformed. I'm sure you're right though. Even getting shot while wearing a conventional "bullet-proof" vest will often cause bruising if not broken bones.
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
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A normal bullet proof vest is fairly rigid so that will distribute the force. There are also multiple layers, which does some absorption. The energy has to go be disipated somewhere. This stuff looks quite thin, which means it does not have much rigidity, and there is no way it can absorb energy in such thinness. The material stretches a hell of a lot (while absorbing the energy), but does not break, which why they talk about the bullet being sealed. If you put a few inches between you and this material, you might not get hurt. However, it may kill you if the bullet hits the right spot. Before the material has absorbed all the energy (and your body), it is possible the bullet will hit your heart. SOmewhat similar to the idea of why the huns would wear silk shirts. The arrow did not penetrate the silk, which allowed the arrow to be removed with minimum damage.
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How about bullet proof computer parts?
Copper Heat Sink stopped a 45 cal 385 grain copper jacket bullet at roughly 1900 fps
Heat Sink impact 1
Heat Sink Impact 2
Heat Sink Impact 3
Heat Sink Impact 4
Hard Drive...Not so much....
Err sorry HD
Looks like about a 3 inch thick piece of glassy rubber? I would think 3 inches of allot of materials would stop a relatively slow moving 9mm handgun round. Let’s see that same piece of whatever it is stop 50bmg.
Just for the math folks here...
The 1/4inch thick copper heat sink was hit at roughly 1900 fps with a 385 grain round
The 9mm luger has about 115 grains at 1100 fps
So...
The round shot at the heat sink had roughly 3085 foot pounds of energy
The 9 mm round about 309 foot pounds of energy
That’s nearly 10 times the energy hitting the heat sink.
For argument sake the most typical round currently used by NATO is the 5.56mm round, it has about 1800 foot pounds of energy. That’s roughly 5.8 times the energy of the 9mm round tested. It looks like it travelled about half way through or roughly 1.5 inches... time 5.8 times the energy stopping power needed... that’s 8.7inches thick to stop a relatively mundane military round. I don't know about you but no vehicle or human is going to have 8.7 inches thick of any material to stop a bullet no matter how light it may be.
Imagine Forest Gump with a 9 inch thick helmet on his head?
Either way it’s still pretty cool.
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Not quite right. Thicker metal has a lot more resistance to bending. A 2x6 is going to bend 4 times less than a 2x4. Resisting penetration is a more linear problem. The bullet did not penetrate the copper plate, so we are not sure that a bullet that has twice the energy would penetrate or not. we know that if we double the plate, then a bullet with twice the energy will not penetrate, but also will not deform the plate as much.
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A bullet with 1/2 more energy cut through the copper plate like butter without even deforming it. Everything has a breaking point. You are correct that when your talking about the extreme forces that bullets put on things penetration is neither consistent nor linear. However when the penetration ability of a well known mild round goes halfway through something a high powered round will generally eat it for lunch. Take a bullet proof vest as an example. It will easily stop a 9mm round without much more than a bruise. Hit that same vest with a .308 and I wouldn't want to be the guy standing behind the guy with the vest, let alone the guy wearing it. Even if a 3 inch piece of that material was effective at stopping a rifle round 3 inches is still far too thick to be practical to be worn as armour. There are thinner and stronger materials even if they are heavier. The weight gain in the relatively small amount of material required for a helmet or chest protection is of less importance than bulk. I could see this having applications in armour for vehicles where bulk is of less concern than weight. I still think we are are talking about at the very least double thickness of that material to be effective for any improved body armour. I would imagine they will make it better are time goes on though.
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Actually think that the real solution would have to be some sort of composit, like used for tank armor. maybe have a layer of this material on the outside to containthe bullet, in 2nd layer that will absorb and distribute the energy, and maybe a last layer of this material to deal with fragments. You do not want the sedondary fragments inside the body so they need to be fished out one by one.
3 inches would not be a problem. People where down jackets that thick, it would be the weight of anything that would be effective.
50 cal would probably take off an arm even if it did not penetrate.
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Or Liar sues Liar?
California lawyer sues Microsoft claiming storage space on Surface tablet less than advertised[^].
Does he have a point? Not really, I'm thinking. Because the ASUS Android 32GB tablet had stuff (preinstalled Apps) on the 32GB card when I bought it. And I think that's where the Android OS is installed (or is it installed in ROM?).
Sounds like he has buyer's remorse.
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
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If it's a successful lawsuit it sets a precedent for every single hard drive ever bought.
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Yeah, that's true. No more selling a 956 GB drive as a 1TB drive just because 956 * 1024 * 1024 = 1,002,438,656 bytes.
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
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Or a 149.5cc motorbike as a 150.
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**snort**
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
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I know, I need the extra 68 megabytes I was promised!
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LMFAO!
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
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ahmed zahmed wrote: No more selling a 956 MB drive as a 1TB drive This drive seems to be about 1023GB short of a TB...
The United States invariably does the right thing, after having exhausted every other alternative. -Winston Churchill
America is the only country that went from barbarism to decadence without civilization in between. -Oscar Wilde
Wow, even the French showed a little more spine than that before they got their sh*t pushed in.[^] -Colin Mullikin
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LOL, typo...
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
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ahmed zahmed wrote: No more selling a 956 GB drive as a 1TB drive just because 956 * 1024 * 1024 =
1,002,438,656 bytes.
Hard drives are measured in decimal megabytes so it would be 956 * 1,000,000
http://en.wikipedia.org/wiki/Megabyte#Definition[^]
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OH really? I guess it depends on the manufacturer then. Because the Seagate 1TB drive I have only has 956MB. But it's called a 1TB drive.
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
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ahmed zahmed wrote: Because the Seagate 1TB drive I have only has 956MB. But it's called a 1TB drive.
Seagate explicitly explains that for them "1 TB" is "953,674 MB" and I am still am unclear both what you are measuring and how you are measuring it.
http://knowledge.seagate.com/articles/en_US/FAQ/172191en[^]
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That may be, but that's not how it's advertised. In any case, I'm not complaining, you misunderstand. I was merely pointing out that almost everything we buy is "rounded up" in some way. It's almost a lie, but not quite, since most of us see through it and understand. It does bother me though. Just a little. Because the naive initiate (n00b) will assume that 1MB = 1024*1024 Bytes, not 1000*1000 bytes since that's what's taught in school.
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
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MS should go ahead to court.
And bring up what lawyers call billable "hours".
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I've never seen a PC advertised for sale anywhere that has the amount of free space on the hard drive advertised rather than the total size.
Every man can tell how many goats or sheep he possesses, but not how many friends.
Shed Petition[ ^]
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And I'm pretty sure most ads have fine print that specifically say useable space is less than the total advertised space.
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