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Bullet-Proof Sheets of Carbon Nanotubes

kdawson posted more than 4 years ago | from the general-products-hull dept.

Businesses 206

An anonymous reader notes a report on Nanocomp Technologies, the first in the world to make sheets of carbon nanotubes. "In April, [CEO] Lashmore had a mechanical multicaliber gun shoot bullets at different versions of his sheet, each less than a fifth of an inch thick. ... Army tests show the material works as well as Kevlar. The military also hopes to replace copper wiring in planes and satellites with highly conductive nanotubes, saving millions of dollars in fuel costs."

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Porn Troll Satisfies (0, Troll)

Porn Troll (822045) | more than 4 years ago | (#29466039)

The New York subway system can be a royal pain in the ass. It seems that every time I'm in any kind of rush the damn thing breaks down. No problem, I'll just go up and grab a cab. The problem with that is that it is raining and trying to catch a cab in midtown in midday is bad enough but in the rain it is near impossible. Aw screw it. I'll get there when I get there and they go stuff themselves. I'm Judy, a twenty six-year-old junior marketing manager for one of the Fortune 500 computer companies. I've been with his company ever since college and really love the job; and the money. Lately I've been getting more than my share of travel so I'm building a nice bank of frequent flyer miles but so far my travel has all been within the US but there is a good possibility I'll be off on a Paris/London trip a month from now. That's down the road, I have to make this meeting in the next half-hour or as the saying goes, my ass is grass. Subway failure is not an acceptable excuse with this crowd. "Anticipate" is the key word in the office. 'Think of what can occur that can negatively impact your plans and then take precautions to prevent that from happening." I waited too long to head for the meeting and that's my fault ... not the subways'. I climbed the steps from the subway platform to see a cab letting a guy out right in front of me. WOW, I jumped in and pulled the door shut and pushed down the lock button. There were two or three others standing at the curb shaking their fists at me for being so forward but screw it, this is life in the big city. I gave the cab driver my destination but it always surprises me when they can understand instructions for, as any of you who have taken a cab in NYC know, the cab drivers are every nationality, except USA. Traffic wasn't as bad as I thought it might and I made it to the conference room with plenty of time to spare. As I walked in the door there were ten to fifteen people already gathered in little chat groups waiting for the meeting to start. I didn't know anyone and was standing there like the proverbial bump on a log when a gorgeous looking gal about my own age came over and introduced herself. She had her hand out while saying with a big smile, "Hi, I'm Ann and am with the company you guys are trying to sell." "Hi Ann, I'm Judy and if our top guys don't get here soon I wouldn't blame if all of you left. The meeting is supposed to start in five minutes." "Oh don't blame anyone. They were all here a half hour ago and took our top guys for a tour of the building." "OK, I won't fire them." I laughed. We stood there chatting about everything but computers and found we had tons in common. We both rented apartments down in lower Manhattan and we had both graduated from Colgate. My folks live up in northeastern Pennsylvania and hers are up in New York State about thirty miles from mine. I have a younger brother and older sister and so does she. The similarities were almost uncanny. In addition to all of that I had the instant hots for her. She appeared to have a great shape and she had super smooth facial skin with an absolutely gorgeous head of brunette hair. This was going to be a tough assignment for me for I damn sure didn't want to blow the corporate deal just because I wanted to jump into the sack with her. Now I'm wondering if I can do anything with her that would move the deal along in our favor by getting closer to her in every way. The business meeting went pretty well and Ann and I exchanged both business and home phone numbers promising to call one another after all of the business stuff died down. She called several weeks later asking if I would like to get together for a movie or just a simple dinner in a small little family owned restaurant she had recently discovered. It was close to the theater and it wasn't expensive. Ooops, she said the magic words ... good food at a reasonable price. I agreed and we met and enjoyed the movie and food and our conversation. She was a technical analyst at her company and I am responsible for presenting the technical advantages our company's products offers over that of our competitors. Ann and I agreed we would leave all talk of that kind for our workdays and never mention a word of it during our off hours. Both of us were between boyfriends and cursed men in general over dinner. We agreed most men only thought with their little heads rather than their big ones and also agreed that a man's stiff dick has no conscience. They will fuck anything and everything and never think twice about it. As I was looking at her over the dinner table I could just picture her shapely tits on each side of my face as I moved my mouth kissed her rock hard nipples. Now, the question was how was I going to get from here to there. I also wanted to tickle her pussy with a giant dildo/vibrator I have. It is a solid twelve inches and has a strap on feature I could use to fuck her with. Would this ever happen? I could only wish. During the spring and summer we went to a gazillion things around the city with Central Park, during daylight hours, being one of our favorites. There was always something going on in it. We hit every offering of the Museum of Art and also found a couple of neat little clubs offering fantastic music. They gave some aspiring musicians a chance to play in public and the only money they received were the tips the audience contributed after their performance. The clubs had a two-dollar cover charge and didn't rip the customers off over the price of drinks! We would sometimes rub against one another climbing in and out of those places and I didn't know if she felt anything but I sure did. One night she was wearing a pair of white shorts and a teal blouse and when she bent over to dig some money out of her purse for a tip for the musicians my mind went wild. I could just picture my hands reaching under that blouse and fondling her breasts. I almost let myself go and did it but came to my senses in time. Oh I would have liked that to happen. Ann seemed to be a far more sensitive person than I am. She would cry at almost any slight or offensive remark anyone ever made. I would just as soon tell the person making it to go fuck him or herself; she would sulk and be wiping her eyes within minutes of the hurt. I don't know how many times I had to put my arms around her to comfort her and bring her out of her blue state. She had had a difficult childhood and that may have been the cause of her sensitivity. Sometime in the fall she called asking me if I would like to join her for a night at the Metropolitan. She had latched onto tickets for a pair of great aisle seats and remembered that she and I had talked about liking opera. I said yes almost before she had finished her offer. It was going to be on a Friday night a week away so I had a little time to get a decent dress for the occasion. My business suits were fine for everyday wear but I didn't think they would do for a night at the "Met". I'm five four and weigh in at 119 pounds. Folks tell me I have a nice figure but sometimes I wish my breasts weren't as full as they are. It frequently makes picking out clothing more difficult. I finally found a dress I fell in love with and after wiping out my meager checking account had it boxed. We had agreed to meet right inside of the main door and I was there right on time. When a woman tugged on my arm asking "Judy?" I was floored. She didn't look anything at all like the Ann I had been paling around with. I was so taken aback I was actually stuttering. "Ann? ...You are stunning." "Never mind me, everyone in this lobby has their eyes on you. Where in the world did you find that magnificent dress?" "Oh it's nothing. I picked it up on the main floor of the Fort Knox Gold exchange," and we both roared and nodded knowingly. As we were being led to our seats I let her go first with the usher guiding us. When we got to our row he stood aside and let Ann go in first. I almost died laughing at what happened next. Just as she had bent down to lower herself into her seat the man in the row in front of her turned to see someone in a few rows behind us. Ann's lovely breasts that were partly out of her dress anyway were bulging even more as she had bent to take her seat and the guys face wasn't more than four or five inches from her cleavage and I could actually hear his gulp. "On my God, Oh my God, I'm so sorry." We didn't know what he was apologizing about. He hadn't touched her at all. It was just one of those weird positions we sometimes get ourselves into but this was one he wouldn't forget in a long time. He acted as if we weren't even in the hall during the Intermission. The opera was one of my favorites and as a payback for the fantastic center- aisle-ten-rows back seats she had gotten, I had made a reservation to treat her to a late supper at one of my favorites, La Cote Basque. I fell in love with the place when I first came to the city and have loved it ever since. The food was superb as usual, it should be for the price they charge, and the wine was acceptable. I, big shot that I am, went against the sommeliers recommendation and we paid the price for it. Ah, it wasn't too bad but not as nice as I would have liked. We hit a couple of late drinking spots and danced at one of them. The guys seemed to like the looks of our breasts bulging from our new evening dresses. No problem, none of them turned us on and we were soon grabbing a cab for the ride back down to Battery Park. Ann had been far less than her normal jovial self and I couldn't get out of her what was wrong. "Nothing, everything's fine," was all she would say. And her face would light up into a huge but what appeared to me to be a forced smile. The cab ride back only took twenty minutes or so and since my place was first along the route I invited her up for a nightcap. She accepted but wasn't real enthusiastic about it. "Ann, will it be wine, whisky, gin or vodka?" I asked, sounding very much like a bartender. "A glass of any red wine you have will be fine." She was halfway between the kitchen and the living room when she said that and I turned to see a very long face on her. I put everything down and went over and put my arms around her saying, "Ann, let it out. You have been miserable most of the night. You can't go on like this." The tears were flowing like Niagara and she started to sob. I put one hand behind her head and pulled her to my shoulder and had the other hand patting the middle of her back. "Ann, what is it? Tell me, perhaps I can help." "You can't Judy, it's something that happened back up at my parents house." "Well, I certainly can't force you to tell me but I'm right here if you think I might be able to help." I removed my arms from around her and grabbed the two glasses and ushered her out to the living room. She was sitting on the sofa and I had an easy chair facing her. We started some small conversation about nothing very important when she put the glass down on the end table and began crying as loud as I had ever heard. Her sobs were heart wrenching. I went over and sat besides her holding her the way I had before and she soon had her head buried in the crook of my neck. "It's about my father. He drinks too much and had a car accident last night. His car is totaled and he doesn't have the money to get another one. His insurance company dropped him a month ago and he's in big trouble with the state for driving without insurance. "Can you loan him some money for another car? It doesn't have to be a Rolls Royce but just something for him to get around in. He can go into the uninsured motorists' pool for his insurance. It will cost him a lot more but at least he will be able to drive." "I don't know. I have been giving him money for the last year or so for all kinds of things and I'm almost broke." She answered. "Hell, maybe I can help out for a little. It won't be enough for a Cadillac but it will get him to and from the grocery store and the doctors." "Judy, I couldn't do that. We are just friends, you don't have to loan me what little you have just because my father is a drunk. I'll take the money out of my 401K Plan." Her sobbing began again as she said those words. I lifted her face off my neck up so she was facing me and dropped my mouth close to hers. She was staring at me every inch that I moved my face and when our lips touched I could feel her shudder. My arms went around her as I pulled her to me. When our long kiss ended all I could say was, "Hush honey. We'll work it out." My Fort Knox Dress was getting a little crushed and tear stained so I said, "Let me up a minute." I dropped the dress to the floor immediately picking it up and draping it carefully over a nearby chair. I was now in my bra and panties. "Ann, you might want to do the same as long we are just hanging around and lets go back to my bedroom while we are up and about anyway." She did and I was floored. She too was now in bra and panties and she had the loveliest shape of any I had ever seen. I pulled her down on the bed and she sat with her face nuzzled against my neck again and her sobs were tearing me up as well as her. Patting her back helped her a little but she moved right to me when I pulled her up again so our mouths were facing each other's. Once again when our lips touched she threw her arms behind my neck and pulled me to her so hard I could barely breathe. Her tongue was deep inside of my mouth and I let my hand drop to her breasts and lifted her bra up and over them so they were standing free with no encumbrance. They were firm as could be with large rock hard nipples. Damn they felt nice. I used the same hand to unhook my own bra and let my breasts free to rub against hers. I spent a second or two lining them up so when I pulled myself against her again our breasts were touching nipples to nipples. This got to me big time and I could feel her starting to breathe faster and harder. This time it was her hand that was doing the wandering and it crept down my chest and then abdomen and slid under the rim of my panties. She kept it going so she had a couple of fingers spreading my pussy lips and then she was very busy sliding back the covering on my clit. When my hood slides back the clit is huge and protrudes at least an inch. I gently pushed her on her back, pulled down both of our panties and slid over on top of her with our lips locked in place and just let out clits touch ever so lightly. I continued with the huge kiss and then did something I did a long time ago with another woman. I started to clit fuck her. My hard and protruding clit was aimed right at hers and I pushed my hips forward so it was just lightly touching hers. Hers is more like a normal clit in that it doesn't really protrude much when it is aroused so it was hard for mine to touch it. I then thought it would be best if we assumed the 'scissors' position to get around that difficulty. We lay with one leg in front of each other's chest and the other leg up behind her back. This put our pussies, and more importantly our clits, close enough so they were almost in direct contact. When my clit hit hers she jumped as if she had been hit with an electric cattle prod. She screamed so loudly I honestly thought the people in the next apartment would be knocking on the door. They must have been out for nothing happened. I was grinding mine around hers and she was pushing hers against mine as hard as she could. I could hear her breathing harder and faster and it wasn't going to be long before both of us were exploding. She came first and was pulling against my leg that was up on her chest while she was still grinding her pussy hard against mine. That made me even more aroused and I had my orgasm right behind her. Whew, it was awesome. "Judy, I have wanted to be close to you since the first time we met but I had no idea it would ever happen like this. I have only ever been with one other gal and we just did the normal girl-girl things but this was unbelievable. Where did you ever learn it?" "I too have only been with very few other gals and one woman, a good few years older than me, taught it to me. I hadn't done it in years but am I ever glad I remembered it now with you." We slid around so we were facing and just held each other tightly. "Ann, it's a Friday night and neither of us have to go to work in the morning. How about staying for the night. You can use some of my clothes if that would worry you. We are basically the same size with the exception of those beautiful tits of yours?" With that I slid my hand over to them and just began to slowly caress her nipples. They must be a full 34 C and she has the largest and darkest areolas I ever saw. Damn, they turned me on by just looking at them, never mind caressing them, "Ann, do you just go with women or do you like to fuck men as well?" "Judy, I love to suck a cock and have one pounding deep inside of me but I haven't met any guys here that I feel comfortable with. How about you?" "I go out with a guy every now and then whenever I get so horny I can't stand not being near a stiff cock any longer but I haven't seen him in a long while." She moved away a little and then slid down in front of me. When her face was level with my crotch she let her hand reach out and used a couple of fingers to spread my pussy lips wide. She moved her face in closer so my clit was n reach of her tongue. She soon had her lips sort of squeezing the hood around my clit doing her best to encourage my clit to come out and play again. Sure enough she was able to get it out and then she just slipped her lips in closer and was sucking my clit as if it were a drinking straw. Whew, it felt terrific. She did that for a few minutes and then, while still holding my pussy lips open with her fingers, explored and licked every little fold in the inner and outer lips of my pussy. She finally squished her face deep against my vagina and just moved her face around and around my now soaked pussy lips. "Oh Judy, I have wanted to do that for so long." She sighed. Well honey keep going for you will soon have me having another orgasm with the way you are treating it. She dove right back to the task at hand and sure enough I was soon throwing my self from side to side of the bed as her mouth kept up its action. It wasn't another minute later that I was exploding, She lapped up every drop of my juices and finally finished me off by finger fucking me with a couple of her long thin fingers. "Ann, I don't know where you learned to eat pussy but you are something else again." We finally got to sleep but awoke a lot earlier than either of would have normally on a Saturday morning and I was looking straight at the loveliest pussy imaginable and the lips of it weren't more than three inches from my mouth. What was I to do? It didn't take me a nanosecond to decide. I raised a hand and let two of my fingers spread her puffy lips to make room for my face in to search out her clit. I could feel the hood covering it but for some reason it was hiding and didn't seem to want to some out to play. I curled my tongue lengthwise in sort of a drinking straw fashion and went after it that way. I was actually using my tongue as a straw and was soon able to unsheathe the missing clit. As soon as it popped out Ann went a little nuts again. She rolled over so her pussy was holding my face to the bed and she started to grind it against me. I let my hand wander around to her ass and soon had a couple of my fingers soaked with her juices and slipped first one and then both up her ass to my first knuckles. She went absolutely bananas. She lifted her ass in the air and was twirling her hips with my fingers still inside of her tight little asshole while she was howling, not just whimpering but making a very loud noise best described as a howl. I had surely discovered a very erotic spot on my little Ann. Her orgasm was right there and she threw herself back down on the bed, as she was dry fucking the mattress with my two fingers still probing her ass. "Judy, I don't know what to say." "Thank you would be nice for starters." I said jokingly. I was now having second thoughts about inviting any guy over to share this piece of femininity with me. She is awesome and I was thinking I would keep her to myself for a while. "OK Sweet thing. Since I was so nice you can make our breakfast." "Sure, just tell me where everything is." I lay there shouting directions to her and could soon her bacon sizzling and the smell of coffee wafting through my place. This was going to be a GREAT day. By the time we got the kitchen cleared and cleaned and had our showers it was almost noon and I was searching my mind for things to do that would interest us both. I couldn't come up with anything other than taking the subway up to midtown and then walking 5th Avenue down from Central Park past St Patrick's and then seeing if anything was going on over by Radio City. It was a nice day for a walk and we went at a snails pace. When we got down to the lower plaza behind Rockefeller Center there is a railing around the upper level. Ann was about ten yards in front of me as we approached the railing and she leaned over it to see what was going on below and I thought I was going to choke. He cutoff jeans were clinging to her like a magnet anyway but the bending over movement did it. I was about ten feet in back of her and my mind went absolutely wild. I couldn't quite see the crack in her pussy but my mind was saying I could. It was picturing those luscious lips wrapped around my tongue or fingers and my heart actually started racing. God, I wanted her and wanted her right then. I walked right up behind her with one hand down at pussy level and leaned against her so she could surely feel my fingers but no one else, even those standing right beside us could see what I was doing. I moved my fingers in a small circle and leaned over and whispered, "it's time we were getting back" She turned to face me and simply nodded. No waiting for a subway on the way back downtown and then walking from the station to my apartment! I hailed the first cab, gave him directions and told him to put his foot down. We weren't in the apartment more than a minute before I was shucking clothes off and strewing them wherever they landed. She was doing the same as me but without quite the fervor I was. As soon as I had her in the bed I dropped to my knees and had her legs around the back of my neck pulling my face deep within her as my tongue searched out her clit. When I found it she was the one who was going wild. It didn't take her long before her juices were pouring out of her and my breathing started to come at a more even pace. Damn, I had been hot. Whew, that was something else. I had forgotten something I did a year ago with another gal and went over and got the tube of KY jelly. "Ann, sit up at the top of the bed with your head propped up on some pillows and save me one for your hips." She did asking what I had in mind. "Hush, wait for the surprise" I spread her legs and squeezed a huge gob of the lube on my fingers and reached over and smeared it on the lips of her pussy and then pushed my fingers as far up as they could reach to get some of the lube up there. I then smeared a ton of it all over the top and back of my hand and they told Ann to relax. I was going to 'fist' her. "Oh God, Judy, I have heard of this and I am scared to death of it." "Relax honey. I will not let any harm come to you." I folded my fingers into a tight tent position and moved the hand to her pussy lips. It went in her up to just above my middle knuckles with ease. I then stopped my pressure. "Now, Ann, I want you to totally relax. Let all of your muscles in this area go limp." I could feel her unwinding and could see she was biting her lower lip and I didn't know if that was from pleasure or fear. She soon told me. "Judy, that feels good but I am afraid what it will be like if you go in any further." "Relax honey. I am going to go real slow." I started to put some real pressure on my hand and then just stopped with the pressure still there. Bit by bit I could see her opening up more and more letting me in deeper and deeper. I then stopped with the knuckles on the top of my fist still exposed. Then it was almost as if the doors to a room opened and my hand was buried up to my wrist. She gasped and I think I did too. "Ann, I am in you all the way. I am going to open my fist and let my fingers twirl slightly inside of you." "Yes, Yes, Yes. God, that feels unbelievable. Oh, don't stop. Don't ever stop." As I twirled my fingers slow up inside of her I could feel various parts of her anatomy pressing against my hand. Rather than run the risk of doing her any harm I slowly closed my fingers back into a fist and then told her I was going to 'fist fuck' her. I drove my fist another two or three inches up inside of her and she almost flipped off the bed. "Judy, that is terrific. Please don't stop." I was driving it in and out not as fast as a guy would fuck her but fast enough to get her attention. She had another enormous orgasm and I could see her visibly relax back down onto the bed. "Ann, I am going to take it out of you know but we have to go real slow and not create any suction that could possible cause harm. Just relax and I am going to move very slowly." My hand was soon out of her and she was pulling me close and had her lips locked onto mine in a huge kiss. "Oh, I wish you were a guy right now and could fuck me. My pussy is crying to get fucked." "Hold on honey. That is a normal feeling after getting fisted." I dug out the big dildo and strapped it on. She couldn't quite see what I was doing but she damn sure felt the first eight inches of it slipping up inside of her. As I started to go into the fucking motion I let the rest of it slide up deep within her and she was crying like a baby with ecstasy. "Judy, what would I ever do without you?" I kept up thrusting it to her and felt her respond in kind. She shuddered a few times and then just sort of collapsed back on to the bed. I slipped the dildo out of her but turned on the vibrating tip as the end as the dildo approached her clit. When that vibration hit her clit her legs were thrown high in the air as another massive orgasm overcame her before she finally collapsed completely drained. "Judy, come closer. I want you hugging me." We lay like that for what seemed to be hours but in reality was only ten minutes. I got up and took her hand leading her to the bathroom where we showered together. Later that night she nuzzled close to me saying she had a question to ask and that she didn't want me to get mad about it. "Sure honey, ask away." "Do you think we could move in together, either you in with me or me in with you? Yours is a bigger place but the rent on mine is a lot less." "Mmmmmm, interesting. Are you saying you never want to be going out with guys or do you mean you will still do that but they wouldn't be able to stay over with you?" "I never thought that far ahead Judy. I just know I love to be near you and can't bear it when we are apart." "Amy, I think you have to give this a lot more thought. As far as having you as my full time friend and lover, I think that is great. However, if you are still going to be out fucking guys I don't want any part of that. As you know AIDS is rampant; particularly in a city like New York. In fact, I am a little worried about us right now. We have been in bed for the better part of a couple of days and I have no earthly idea of who you had sex with last and who they had sex with before you. That disease is like an octopus; the tentacles keep stretching out." "I am not sure I am ready to give up guys yet Judy." "No problem honey. I think what we have had for the last few days has been terrific. I will be going to the doctor on Monday to have all of the tests in the hopes that if you have transmitted it to me I can nip it in the bud. You don't have any worries since I haven't had sex at all for the last year or so and had the tests done after that." "Geez, you make me feel like a real slut or at the very least some disease ridden hooker." She said. "Amy, I am so sorry you feel that way but surely you are aware of the problem and I can't imagine you don't at least give it some thought." "To tell the truth I haven't given it a whole lot of thought." Shit, just what I wanted to hear. "Well, Amy, as I said I will be tested tomorrow and hope everything is clean. After what I hear you saying I think it would be best if we just stayed as friends without exposing the other to any risk at all." "I am so sorry you feel that way. Maybe if I make the 'Judy only' decision you will change your mind." "Oh, I am sure I will as soon as I hear that. But for now how about getting over here on your knees and make mad passionate love to my pussy?" That was all she had to hear and her mouth was buried in my crotch. My orgasm was great but not as exciting as others she led me to; the last conversation had dampened my ardor a bit. We didn't see each other sexually at all after that day but did see one another frequently during our business relationship. During one of our meetings she mentioned she had met a great guy and he had asked her to marry him and she had accepted and I was thrilled for both of them. A month after that I got a phone call one night telling me she had overheard some of the decision makers at her company talking about the deal my company had proposed to them. She heard their people say something about if our proposal had only included a certain feature they would sign with us immediately. I couldn't wait to get into the office in the morning where I went into my boss's office and said I had been thinking about out proposal for quite some time and thought if we had only included that feature (Now you don't think I told him that I had been told this by an insider do you?) as an alternative approach they might favor us with the contract. You guessed it ... we did and we got the deal. My boss was so thrilled he called a meeting of the whole team and gave me full credit for the idea. He also promoted me up two levels with a very nice increase in salary. I paid a small fortune for two aisle seats at the Met and sent them to Ann without any comment in the envelope ... She would know full well who sent them.

Re:Porn Troll Satisfies (0, Offtopic)

Anonymous Coward | more than 4 years ago | (#29466565)

You know, most people here are with average attention span of goldfish, you will not get too far as successful troll with such a long posts.

I suggest something shorter. Also as everybody knows, you should troll about Niggers and M$. Porn trolls just make keyboards wet. They will not create any discussion about your troll post as it's quite hard to type on such a sticky keyboard.

For more, search Trolling 101 on your preferred search engine. Unless it's Bing, as you'll find nothing.

Re:Porn Troll Satisfies (-1, Offtopic)

Anonymous Coward | more than 4 years ago | (#29467303)


Escalation (1, Interesting)

Bruce Perens (3872) | more than 4 years ago | (#29466057)

If artillery has problems getting through carbon nanotubes, oxyaluminum nitride, and spinel, how long until the artillery itself is made of those materials?

Re:Escalation (3, Interesting)

Kentaree (1078787) | more than 4 years ago | (#29466115)

That's an interesting question, but doesn't it apply to kevlar too? We've had kevlar vests for years, but no ammunition made of kevlar that I've heard of. Maybe the material isn't suitable to be shot out at high speeds/pressures?

Re:Escalation (4, Informative)

Nadaka (224565) | more than 4 years ago | (#29466207)

Kevlar and carbon nano-tubes are not particularly dense. The ideal projectile material is extremely dense, its why lead and depleted uranium are often used instead (or in conjunction with) of hard brass or steel.

Re:Escalation (4, Informative)

johndiii (229824) | more than 4 years ago | (#29466515)

A few years back, the trend in armor-piercing rounds was the teflon-coated brass round [] . They are now banned, though not for the Teflon coating (which wears off in the barrel or peels away in flight), but because of the hard cores.

Re:Escalation (4, Informative)

lwsimon (724555) | more than 4 years ago | (#29466859)

For clarification, Teflon coating of projectiles is designed to reduce barrel wear, and has nothing to do with penetration.

Most ammo manufacturers now use molybdenum coatings - not sure if that is because it is more effective, or because of the dumb "Teflon-coated cop-killing bullets that go through a bullet-proof vest!" bullshit the Brady group shrieked about in the 90s. FWIW, most any rifle bullet will penetrate light armor, and there are several surplus rounds that can even penetrate level IIIa from a pistol - 7.62x25 Tokarev being the most popular, in the CZ-52.

Re:Escalation (1)

lwsimon (724555) | more than 4 years ago | (#29467021)

Also, brass rounds aren't "banned", though there are some odd regulations.

Re:Escalation (5, Informative)

Wolvenhaven (1521217) | more than 4 years ago | (#29466227)

People also used leather as armor, but so far no one has dug up a leather sword. The physical properties of kevlar as used for armor are entirely different from the physical properties of a good bullet. Kevlar has very high tensile strength allowing it to spread the impact over a large area by deforming and pulling on all the threads around it. With a bullet, you want all the force located in one small, strong, pointy area for penetration; which is why armor penetrating rounds are jacketed or tipped in a metal much stronger than lead or copper(steel, tungsten, depleted uranium).

Re:Escalation (4, Informative)

clone53421 (1310749) | more than 4 years ago | (#29466327)

you want all the force located in one small, strong, pointy area for penetration; which is why armor penetrating rounds are jacketed or tipped in a metal much stronger than lead or copper(steel, tungsten, depleted uranium).

Actually, the advantage of DU [] isn't its strength but its density:

Depleted uranium is very dense; at 19050 kg/m^3, it is 1.67 times as dense as lead, only slightly less dense than tungsten and gold, and 84% as dense as osmium or iridium, which are the densest known substances under standard (i.e., Earth-surface) pressures. Thus a given mass of it has a smaller diameter than an equivalent lead projectile, with less aerodynamic drag and deeper penetration due to a higher pressure at point of impact.

Re:Escalation (4, Informative)

mayko (1630637) | more than 4 years ago | (#29466941)

Well its really both it's density and hardness. The Brinell hardness of U-238 is 2,400, which is just shy of tungsten at 2,570. Iron is 490.

Also, DU has incendiary properties (somewhat similar to magnesium) which make it great as an artillery shell.

Re:Escalation (0)

Anonymous Coward | more than 4 years ago | (#29467305)

you want all the force located in one small, strong, pointy area for penetration; which is why armor penetrating rounds are jacketed or tipped in a metal much stronger than lead or copper(steel, tungsten, depleted uranium).

Actually, the advantage of DU [] isn't its strength but its density:

Depleted uranium is very dense; at 19050 kg/m^3, it is 1.67 times as dense as lead, only slightly less dense than tungsten and gold, and 84% as dense as osmium or iridium, which are the densest known substances under standard (i.e., Earth-surface) pressures. Thus a given mass of it has a smaller diameter than an equivalent lead projectile, with less aerodynamic drag and deeper penetration due to a higher pressure at point of impact.

Also from Wiki [] :

Depleted-uranium penetrators have the advantage of being pyrophoric and self-sharpening on impact, resulting in intense heat and energy focused on a minimal area of the target's armor.

Re:Escalation (0)

Anonymous Coward | more than 4 years ago | (#29467331)

This is usually referred to as Sectional Density... the weight of the bullet divided by the square of the bullet diameter. Here in the USA, we usually use pounds for bullet weight (7000 grains per pound) and inches for the bullet diameter. So, given bullets of equal dimensions but one made of more dense material, the more dense one will have a higher sectional density and will tend to have deeper penetration, all else being equal.

Also, the article talks about 1400fps bullets so it must be talking about handgun rounds. Still impressive but it'd be interesting to see how many layers it would require for standard military issue rifle rounds.

Re:Escalation (0)

Anonymous Coward | more than 4 years ago | (#29467375)

as osmium or iridium, which are the densest known substances under standard (i.e., Earth-surface) pressures

Neutron star? Pretty sure it's denser under STP.

Re:Escalation (1, Interesting)

FCAdcock (531678) | more than 4 years ago | (#29466421)

>>People also used leather as armor, but so far no one has dug up a leather sword.

Um, I'm pretty sure that would be called a whip. And yes, we dig those up all the time. Some people still use them in fact...

A leather whip can do just as much damage as a sword. It may not be as sharp, but the tip of a whip is the fastest thing short of a fighter jet.

Re:Escalation (4, Funny)

Shakrai (717556) | more than 4 years ago | (#29466483)

but the tip of a whip is the fastest thing short of a fighter jet.

Or a bullet. Or a photon. Or the speed with which you will roll your eyes at my corrections ;)

Re:Escalation (3, Funny)

thebheffect (1409105) | more than 4 years ago | (#29466751)

I missed that lesson in history class. The one where the Roman Legions are beset by the whip-wielding Visigoth horde. On a side note, I'm pretty sure whips are only effective against Dracula and Nazis.

Re:Escalation (1)

Duradin (1261418) | more than 4 years ago | (#29467345)

I'd like to see a human powered whip take off someone's hand in one go.

A whip has speed, but the striking point doesn't have much mass and you can't continue to apply force to it. After the energy of the initial impact is spent you're done.

A sword, on the other hand, doesn't have the speed of a whip's tip but it has more mass, applies the its force in a very small area, and you can continuously apply more force.

Which is one of the reasons kevlar on its own does well against bullets but poorly against a blade. It can spread out the force of the initial a bit impact but the blade point doesn't deform and the blade is driven in with additional force which the cut fibers can't disperse.

Re:Escalation (1)

Publikwerks (885730) | more than 4 years ago | (#29466833)

I have a leather sword...

Re:Escalation (0)

Anonymous Coward | more than 4 years ago | (#29467085)

Pork != Leather

Re:Escalation (3, Funny)

Shakrai (717556) | more than 4 years ago | (#29466159)

TFA doesn't say that it will stop artillery. It says they fired a "mechanical multicaliber gun" at 1,400 feet per second. It doesn't say what calibers or bullet weights they were using but the speed of 1,400 fps suggests that they are testing it against handgun equivalents. There are many off the shelf rifle calibers that will easily achieve twice that velocity. It would be interesting to see if this material is proof against them or if it's only useful against handguns.

Re:Escalation (0)

Anonymous Coward | more than 4 years ago | (#29466169)

About as long as it's taking them to make bullets out of kevlar I'd guess.

There's a price performance ratio here. If you can afford to send your troops into battle with 10,000 rounds of cheap ass led or 100 rounds of "super bullet X", I can bet that your squad is going to opt for the 10,000 rounds. Besides the impact of something hitting you at 1,400 ft/sec is going to take you out of combat just as quick if it travels through your chest, or just breaks all your ribs.

Actually the guy with the broken ribs requires the second soldier to drag him away, which means two less guns shooting back at you.

Re:Escalation (0)

Anonymous Coward | more than 4 years ago | (#29467031)

Speaking as someone with two broken ribs and a broken clavicle, your imaginary soldiers are pussies if they can't walk away from a single broken rib.

Re:Escalation (2, Informative)

MancunianMaskMan (701642) | more than 4 years ago | (#29466171)

Artillery projectiles need to be heavy, not hard. Lead is good, depleted uranium is better. Not obvious where carbon NT can improve that.

Re:Escalation (1)

loupgarou21 (597877) | more than 4 years ago | (#29466189)

There is already plenty of artillery that can penetrate armor. I'm guessing that since the article mentioned that the carbon nanotube sheets provide the same level of protection as kevlar, it probably does no better against a bullet with a depleted uranium core than kevlar does.

Re:Escalation (2, Informative)

Tekfactory (937086) | more than 4 years ago | (#29466395)

Hey Bruce...

Lightweight and hard (not necessarily strong) are not necessarily what you want in a bullet. Hard bullets destroy the rifling in the weapon. There are smoothbore guns, but not too many. Lightweight bullets don't retain their energy well over time.

The trend in artillery is for really heavy rounds, like Depleted Uranium or thin Tugsten spikes launched inside of a Sabot. If anything came from this in a prjectile I assume it would come from the Silver Bullet style like the high speed tugsten spike.

Re:Escalation (4, Funny)

T Murphy (1054674) | more than 4 years ago | (#29467239)

In that case we should try to make armor out of Jello. That way we trick them into trying to attack us with Jello instead of bullets. Not to mention the mass of new recruits we'll get when people hear they get paid to be in a giant Jello fight.

Your official guide to the Jigaboo presidency (-1, Flamebait)

Anonymous Coward | more than 4 years ago | (#29466069)

Congratulations on your purchase of a brand new nigger! If handled properly, your apeman will give years of valuable, if reluctant, service.

You should install your nigger differently according to whether you have purchased the field or house model. Field niggers work best in a serial configuration, i.e. chained together. Chain your nigger to another nigger immediately after unpacking it, and don't even think about taking that chain off, ever. Many niggers start singing as soon as you put a chain on them. This habit can usually be thrashed out of them if nipped in the bud. House niggers work best as standalone units, but should be hobbled or hamstrung to prevent attempts at escape. At this stage, your nigger can also be given a name. Most owners use the same names over and over, since niggers become confused by too much data. Rufus, Rastus, Remus, Toby, Carslisle, Carlton, Hey-You!-Yes-you!, Yeller, Blackstar, and Sambo are all effective names for your new buck nigger. If your nigger is a ho, it should be called Latrelle, L'Tanya, or Jemima. Some owners call their nigger hoes Latrine for a joke. Pearl, Blossom, and Ivory are also righteous names for nigger hoes. These names go straight over your nigger's head, by the way.

Owing to a design error, your nigger comes equipped with a tongue and vocal chords. Most niggers can master only a few basic human phrases with this apparatus - "muh dick" being the most popular. However, others make barking, yelping, yapping noises and appear to be in some pain, so you should probably call a vet and have him remove your nigger's tongue. Once de-tongued your nigger will be a lot happier - at least, you won't hear it complaining anywhere near as much. Niggers have nothing interesting to say, anyway. Many owners also castrate their niggers for health reasons (yours, mine, and that of women, not the nigger's). This is strongly recommended, and frankly, it's a mystery why this is not done on the boat

Your nigger can be accommodated in cages with stout iron bars. Make sure, however, that the bars are wide enough to push pieces of nigger food through. The rule of thumb is, four niggers per square yard of cage. So a fifteen foot by thirty foot nigger cage can accommodate two hundred niggers. You can site a nigger cage anywhere, even on soft ground. Don't worry about your nigger fashioning makeshift shovels out of odd pieces of wood and digging an escape tunnel under the bars of the cage. Niggers never invented the shovel before and they're not about to now. In any case, your nigger is certainly too lazy to attempt escape. As long as the free food holds out, your nigger is living better than it did in Africa, so it will stay put. Buck niggers and hoe niggers can be safely accommodated in the same cage, as bucks never attempt sex with black hoes.

Your Nigger likes fried chicken, corn bread, and watermelon. You should therefore give it none of these things because its lazy ass almost certainly doesn't deserve it. Instead, feed it on porridge with salt, and creek water. Your nigger will supplement its diet with whatever it finds in the fields, other niggers, etc. Experienced nigger owners sometimes push watermelon slices through the bars of the nigger cage at the end of the day as a treat, but only if all niggers have worked well and nothing has been stolen that day. Mike of the Old Ranch Plantation reports that this last one is a killer, since all niggers steal something almost every single day of their lives. He reports he doesn't have to spend much on free watermelon for his niggers as a result. You should never allow your nigger meal breaks while at work, since if it stops work for more than ten minutes it will need to be retrained. You would be surprised how long it takes to teach a nigger to pick cotton. You really would. Coffee beans? Don't ask. You have no idea.

Niggers are very, very averse to work of any kind. The nigger's most prominent anatomical feature, after all, its oversized buttocks, which have evolved to make it more comfortable for your nigger to sit around all day doing nothing for its entire life. Niggers are often good runners, too, to enable them to sprint quickly in the opposite direction if they see work heading their way. The solution to this is to *dupe* your nigger into working. After installation, encourage it towards the cotton field with blows of a wooden club, fence post, baseball bat, etc., and then tell it that all that cotton belongs to a white man, who won't be back until tomorrow. Your nigger will then frantically compete with the other field niggers to steal as much of that cotton as it can before the white man returns. At the end of the day, return your nigger to its cage and laugh at its stupidity, then repeat the same trick every day indefinitely. Your nigger comes equipped with the standard nigger IQ of 75 and a memory to match, so it will forget this trick overnight. Niggers can start work at around 5am. You should then return to bed and come back at around 10am. Your niggers can then work through until around 10pm or whenever the light fades.

Your nigger enjoys play, like most animals, so you should play with it regularly. A happy smiling nigger works best. Games niggers enjoy include: 1) A good thrashing: every few days, take your nigger's pants down, hang it up by its heels, and have some of your other niggers thrash it with a club or whip. Your nigger will signal its intense enjoyment by shrieking and sobbing. 2) Lynch the nigger: niggers are cheap and there are millions more where yours came from. So every now and then, push the boat out a bit and lynch a nigger.

Lynchings are best done with a rope over the branch of a tree, and niggers just love to be lynched. It makes them feel special. Make your other niggers watch. They'll be so grateful, they'll work harder for a day or two (and then you can lynch another one). 3) Nigger dragging: Tie your nigger by one wrist to the tow bar on the back of suitable vehicle, then drive away at approximately 50mph. Your nigger's shrieks of enjoyment will be heard for miles. It will shriek until it falls apart. To prolong the fun for the nigger, do *NOT* drag him by his feet, as his head comes off too soon. This is painless for the nigger, but spoils the fun. Always wear a seatbelt and never exceed the speed limit. 4) Playing on the PNL: a variation on (2), except you can lynch your nigger out in the fields, thus saving work time. Niggers enjoy this game best if the PNL is operated by a man in a tall white hood. 5) Hunt the nigger: a variation of Hunt the Slipper, but played outdoors, with Dobermans. WARNING: do not let your Dobermans bite a nigger, as they are highly toxic.

Niggers die on average at around 40, which some might say is 40 years too late, but there you go. Most people prefer their niggers dead, in fact. When yours dies, report the license number of the car that did the drive-by shooting of your nigger. The police will collect the nigger and dispose of it for you.

Have it put down, for god's sake. Who needs an uppity nigger? What are we, short of niggers or something?

They all do this. Shorten your nigger's chain so it can't reach any white women, and arm heavily any white women who might go near it.

Not unless it outnumbers you 20 to 1, and even then, it's not likely. If niggers successfully overthrew their owners, they'd have to sort out their own food. This is probably why nigger uprisings were nonexistent (until some fool gave them rights).

Yeah, well, it would. Tell it to shut the fuck up.

A nigger's skin is actually more or less transparent. That brown color you can see is the shit your nigger is full of. This is why some models of nigger are sold as "The Shitskin".

What you have there is a "wigger". Rough crowd. WOW!

They're as common as dog shit and about as valuable. In fact, one of them was President between 1992 and 2000. Put your wigger in a cage with a few hundred genuine niggers and you'll soon find it stops acting like a nigger. However, leave it in the cage and let the niggers dispose of it. The best thing for any wigger is a dose of TNB.

And you were expecting what?

When you came in here, did you see a sign that said "Dead nigger storage"? .That's because there ain't no goddamn sign.

Re:Your official guide to the Jigaboo presidency (-1, Flamebait)

Anonymous Coward | more than 4 years ago | (#29466317)

Q: What do you say if you see your TV moving in the middle of the night? A: Drop it nigger!

"Mechanical multicaliber gun"? (1)

johndiii (229824) | more than 4 years ago | (#29466091)

Anyone know what this is, and if it's anything more that a marketing superlative? The only Google hits for the phrase [] are this story.

Sounds like marketing-speak for "gee-whiz super-powerful gun", though I suppose that it could be some arrangement of barrels that tests the stuff with various caliber rounds. I'm not sure why one would bother with such a thing.

Re:"Mechanical multicaliber gun"? (1)

ilikebees (1382425) | more than 4 years ago | (#29466193)

I'm not sure why one would bother with such a thing.

I imagine to test its effectiveness against different types of rounds. I also would be interested in seeing what sort of device this is.

Re:"Mechanical multicaliber gun"? (1)

afidel (530433) | more than 4 years ago | (#29466775)

Probably a big air cannon with sabot sheathing around the bullets.

Re:"Mechanical multicaliber gun"? (1)

Shakrai (717556) | more than 4 years ago | (#29466209)

Maybe they used a .357 magnum revolver and invented that term so none of the hoplophobes in the media would freak out ;)

Re:"Mechanical multicaliber gun"? (1)

Monkeedude1212 (1560403) | more than 4 years ago | (#29466229)

Its mechanical, like most guns. And there are multiple Calibers, meaning its more than 1.

Re:"Mechanical multicaliber gun"? (5, Informative)

OrangeMonkey11 (1553753) | more than 4 years ago | (#29466247)

All or most armor manufacturers use a table top mounted "test gun" that they can change out the barrel and receiver to fire different caliber to test the protective effectiveness of their product. I don't think anyone can buy one of these you have to get them specially built.

If you ever watch any History or Discovery channel show(s) about fire-arms chances are they show a few of these.

Re:"Mechanical multicaliber gun"? (1)

Hijacked Public (999535) | more than 4 years ago | (#29466287)

You could bolt a TC Encore to a table, no receiver change required.

Re:"Mechanical multicaliber gun"? (1)

Tekfactory (937086) | more than 4 years ago | (#29466249)

There are several rifles and pistols that can be changed to accept different barrels and actions into the receiver. These different parts shoot ammunition of different sizes.

I would assume this is a bench mounted receiver that can be triggered remotely. Kind of like the mythbuster's Curve a Bullet Robot. This is done to make each shot as mechanically similar as possible and without endangering a human shooter that shouldn't be on the range on an armor defelction test.

Why not have a bench grip or vise? The handles of these weapons are probably screwed into the mount, not gripped in the traditional sense.

Re:"Mechanical multicaliber gun"? (3, Interesting)

Tekfactory (937086) | more than 4 years ago | (#29466315)

Oh yeah, not to reply to myself, but shortly after high school I did some patent drawings for a cylindrical weapons mount you could load into a 120mm smoothbore cannon and inside the mount you could configure a .308, .50 cal or 25mm match grade barrels attached to an trigger mechanism that could be activated remotely while loaded in the main cannon of an Abrams.

This was supposed to be used for training purposes using ammo already found in the US Armory stores.

IIRC they went with a German training aid instead.

Re:"Mechanical multicaliber gun"? (0)

Anonymous Coward | more than 4 years ago | (#29466267)

I imagine they used a "universal receiver", which are pretty common in laboratories that test armor or ammunition. They're useful for test purposes, but not exactly good for concealed carry.

"Mechanical multicaliber gun" is what you get when the PR people have no idea what else to call the device.

Re:"Mechanical multicaliber gun"? (1)

axehind (518047) | more than 4 years ago | (#29466345)

I believe they mean it doesnt use actually bullets. The ones I've seen use compressed air. They are built so barrel changing is easy so you can easily test different calibers. I believe the standard test uses a 22 caliber wedge shaped projectile shot at a certain FPS.

Re:"Mechanical multicaliber gun"? (0)

Anonymous Coward | more than 4 years ago | (#29466371)

Mechanical: a mounted gun that can be fired remotely for safety. Multicaliber: Can use different caliber ammunition. Gee, that was hard.

Re:"Mechanical multicaliber gun"? (1)

CrimsonAvenger (580665) | more than 4 years ago | (#29466501)

Anyone know what this is, and if it's anything more that a marketing superlative?

I can only speculate what they really mean, but the Thompson Center Contender is a single shot firearm designed to allow replacement of the barrel with a new barrel in pretty much any calibre from .17 on up. Which means that one of them, with a suitable pile of barrels (conveniently, T-C manufactures barrels too) can fire pretty much any rifle, pistol, or shotgun round in creation.

Re:"Mechanical multicaliber gun"? (1)

i.r.id10t (595143) | more than 4 years ago | (#29466745)

Contender and ContenderG2 are limited to lower pressure rounds. The TC Encore gets around this, same basic design just stronger.

hmm (0)

Anonymous Coward | more than 4 years ago | (#29466161)

The military can save millions in fuel cost, for only a few billion to install nano-tube wiring in all their stuff

Re:hmm (2, Insightful)

Raffaello (230287) | more than 4 years ago | (#29466279)

Not that I'm defending wasteful military spending, but the reason they want this is not so much for the dollar savings on fuel, but for the logistical advantages of needing less fuel: extended range of existing aircraft, reduced need for aerial refueling, more sorties on the same fuel budget, etc.

Re:hmm (1)

Raffaello (230287) | more than 4 years ago | (#29466301)

left out the most important one: ability to carry more ordinance per sortie.

Just wait (5, Funny)

ciaohound (118419) | more than 4 years ago | (#29466181)

"Buy Thompson's Carbon Nanotube Bullets. The only nanotubes tough enough to penetrate nanotubes."

Re:Just wait (0)

Anonymous Coward | more than 4 years ago | (#29466321)

yo dawg, i herd u like guns and tubes...

Re:Just wait (0)

Anonymous Coward | more than 4 years ago | (#29466553)

Welcome to the CIRCUS of VALUUUE!

Come back when you get some money, BUDDY!

The first thing you hear about a new technology... (5, Insightful)

clyde_cadiddlehopper (1052112) | more than 4 years ago | (#29466231)

In the 1980s I worked in advanced ceramic materials development for Corning. We were pitching insulating sleeves to be cast into cylinder heads. At a meeting with the Ford SVO engineering group, one of their engineers said "The first thing you hear about a new material is always the best thing you will hear about it. After that, the 'yeah, buts' begin." Yeah, but is it safe? Yeah, but is it affordable? Yeah, but will it conduct / dissipate heat? Yeah, but is it environmentally friendly? It takes time for systems to be redesigned around the special attributes of revolutionary materials.

You missed one - (2, Interesting)

Kupfernigk (1190345) | more than 4 years ago | (#29466295)

Yeah, but won't the existing technology develop to do the same job faster and cheaper than this one can be got to market? That's why wood, ceramics, iron and cement are still the base materials of civilisation, rather than titanium, magnesium and carbon fiber.

Re:You missed one - (2, Informative)

GameMaster (148118) | more than 4 years ago | (#29466609)

The only industry I've ever heard of that being the case in is with Memory and IC substrates and logical design. Wood, ceramics, iron, and cement haven't "advanced", significantly to keep their lead over the others. The reason that titanium, magnesium, and carbon fiber haven't overtaken them yet is that we haven't, yet, developed a super-cheap production method for them (similar to the Bessemer process that allowed steel production to become cheap enough for it to over-take iron and the Faber process that allowed Aluminum to stop being worth more, per pound, than gold).

Re:You missed one - (3, Insightful)

ShadowRangerRIT (1301549) | more than 4 years ago | (#29466923)

And to be fair, in some cases the new materials have taken over. Most passenger jet designs are switching to carbon fiber bodies; the cost is high, but the lighter material means that the you need far less fuel on every trip, eventually paying for itself. (Yes, the 787 is having problems in production, but I suspect that's more a matter of poor coordination than any intrinsic weakness in the material.) And the GP ignored plastics, which relatively recently displaced all sorts of time tested materials in the construction of all manner of products. Who's to say that we won't find a way to produce carbon nanotubes cheaply in the next few years?

Re:You missed one - (1)

smellsofbikes (890263) | more than 4 years ago | (#29467381)

The electrolytic production of aluminum is Hall-Heroult, I believe. There exists a titanium electrolysis system or two, but they're still patent-encumbered. (I've also heard people argue that it's the difficulty in working with titanium rather than the production costs that make it so expensive.)

Re:The first thing you hear about a new technology (1)

cesutherland (903698) | more than 4 years ago | (#29467213)

Yeah, but it is still interesting news.

Sign Me Up: (0, Troll)

Anonymous Coward | more than 4 years ago | (#29466299)

I need super-duper protection in my HUMMER for the impending collapse and the Limbaugh-Palin 2012 presidential road show.

Yours In Crime,
President-VICE ( of the United Gulags of America ) Richard B. Cheney []

How about using this for sails? (2)

Smidge207 (1278042) | more than 4 years ago | (#29466305)

What about using carbon nanotube sheets to make sails for sailboats? Spinnaker nylon which is about the lightest they have still weighs about 14 g/m2. Most sail material weighs 2 or 3or more times that weight, and is very prone to tearing. Heavier more durable sail material, "Dacron," weighs generally between 7-10 oz or 200-300 g/m2. Carbon fiber ia alresdy used to strengthen sails, generally for high performance racing for boats and owners with very deep pockets. Furthermore what about making carbon fiber masts out of sheets of carbon nanotubes. Even furthermore than that, what about replacing rhe fiberglass in fiberglass with carbon nanotube sheets impregnated with epoxy for stiffness. Wow CN sheets are really going to break open new industries very soon.

One day... (0, Offtopic)

VShael (62735) | more than 4 years ago | (#29466313)

the internet will be made of a series of these tubes, and we will remember the wise words of the prophet Ted Stevens.

hmmm (1)

OrangeMonkey11 (1553753) | more than 4 years ago | (#29466319)

I wonder if they can some how harden the nanotube fibers fabric and create some sort of light weight full body exo suits. I know you can do it with Kevlar but it usually turn out really bulky and heavy due to the resin.

There was a Cannadian guy that created the Bear suit out of a combination of kevlar and chainmail and the suit weight several hundred pound and you can't even move in it; the thing look like a Big Daddy

Re:hmmm (1)

GameMaster (148118) | more than 4 years ago | (#29466671)

He was able to move in it, but not very well. If it were combined with some of the powered exo-skeletons out right now it would, probably, be what you're talking about. Of course, the weave of the Kevlar fiber used makes a huge difference in whether it handles bullets or knives. I'm guessing that his designed used a weave intended for knives as it would be more comparable to a bear's claws. That would have to be swapped out.

Re:hmmm (2, Informative)

QuantumRiff (120817) | more than 4 years ago | (#29466925)

You know, considering some of the bears you might be facing would be several hundred pounds, and several times stronger than you, maybe you wouldn't want a "bear suit" to be light weight. Just cause their claws and teeth couldn't puncture the suit, doesn't mean they couldn't throw you into trees, pin you to the ground, or knock you into the water. Sometimes weight is a good thing. Unless of course, you are trying to outrun the bear, which you can't do...

Re:hmmm (3, Funny)

gbjbaanb (229885) | more than 4 years ago | (#29467099)

Bear to another, so this guy comes over in his lightweight 'bear proof' suit, I tried clawing him - no effect, I tried biting him, no effect, I tried shouting at him, no effect. So I sat on the bugger until he stopped wriggling.

Wow! (4, Funny)

Drunken Buddhist (467947) | more than 4 years ago | (#29466341)

...That's some tough sheet!

thicker than I expected (1)

pomakis (323200) | more than 4 years ago | (#29466367)

A fifth of an inch thick? When I initially read "sheets of carbon nanotubes" I was envisioning something on the order of micrometers thick. I'm sure this is still progress, but the story isn't as exciting as I was initially expecting it to be.

Re:thicker than I expected (1)

Ephemeriis (315124) | more than 4 years ago | (#29466557)

A fifth of an inch thick? When I initially read "sheets of carbon nanotubes" I was envisioning something on the order of micrometers thick. I'm sure this is still progress, but the story isn't as exciting as I was initially expecting it to be.

I know basically nothing about armor and weapons and whatnot...

But, while 1/5" may not be as thin as you imagined, it may very well be thinner than what is currently required. How thick a sheet of kevlar is necessary to stop a bullet?

Re:thicker than I expected (3, Informative)

lwsimon (724555) | more than 4 years ago | (#29466953)

It doesn't list the calibers used in TFA, so hard to be a judge. I shoot 1/4" steel plates all day with a .223 without much damage to them - though a lot depends on the bullet type. Lead bullets will splash, lead-nose jacketed bullets will shatter, steel-core will damage or penetrate. Step up to a .308 and good ammo, you're going to need 1/2" or more to have a chance of stopping it.

A .50? The only time I've shot steel with a .50 BMG, it penetrated the 3/4" steel plates I had like they were paper.

If I had to guess, they're talking about handgun rounds, though - in which case, it sounds pretty equivalent to Kevlar. Kevlar isn't just a "sheet", though, as a single sheet is easy to penetrate - its more about the way they interlock when layered, causing the bullet to apply its force to a greater surface area before penetrating.

Re:thicker than I expected (1)

jgtg32a (1173373) | more than 4 years ago | (#29466681)

Also FTA they were surprised it even worked

Re:thicker than I expected (1)

poopdeville (841677) | more than 4 years ago | (#29467187)

Ouch, how many millimeters do you think a fifth of an inch is? Hint: it's 5.

Re:thicker than I expected (1)

clone53421 (1310749) | more than 4 years ago | (#29467241)

GP said micrometers, not millimeters. E.g. a sheet of 3 mil plastic would be 76.2 micrometers thick. A fifth of an inch is 5,080 micrometers.

Vests? (4, Insightful)

bryanp (160522) | more than 4 years ago | (#29466369)

If they could make it work it sounds like it would be a great material for a bullet resistant vest.

Although getting hit with a taser while wearing one ...

Re:Vests? (2, Funny)

Nobo (606465) | more than 4 years ago | (#29466479)

Although getting hit with a taser while wearing one ...

Electrical charge stays on the outside of a conductive sphere.
See (

So In theory, wrapping yourself in a conductive nanotube mesh would prevent the charge from hurting you.

And wrapping yourself in tinfoil would protect you from the police even better! ... Waaaait a minute.

Re:Vests? (0)

Anonymous Coward | more than 4 years ago | (#29467225)

Lucky I'm perfectly spherical then.

Re:Vests? (1)

zenopus (114516) | more than 4 years ago | (#29466535)

Would it not just work as a Faraday cage?

Re:Vests? (0)

Anonymous Coward | more than 4 years ago | (#29467339)

Taser? This would be perfect for a bulletproof taserproof vest - after all, it's highly conductive, much more so than the human body. It would short the taser out - assuming, of course, both barbs hit on the vest...

Calling BS (-1, Troll)

HEbGb (6544) | more than 4 years ago | (#29466463)

"Saving millions on fuel costs"

There is very little energy wasted in copper wiring, especially in airplanes! Moving to a material of higher conductivity will result in minuscule savings, and will be nowhere remotely close to covering the cost of the (extremely expensive) materials.

Re:Calling BS (0)

Anonymous Coward | more than 4 years ago | (#29466503)

I would think that the fuel cost would be result from weight savings and not conductivity. With that said, I still don't think millions would be saved.

Re:Calling BS (2, Informative)

Raleel (30913) | more than 4 years ago | (#29466529)

My guess is it's more about the weight. carbon nanotubes are about 1/7th the density.

Re:Calling BS (2, Insightful)

Anonymous Coward | more than 4 years ago | (#29466579)

The fuel cost savings comes in the form of weight. Copper is likely a lot heavier than the carbon nanotube material. Less weight, less fuel to keep the plane aloft. Alternatively, they could use it for carrying heavier payloads.

Re:Calling BS (2, Informative)

Ephemeriis (315124) | more than 4 years ago | (#29466597)

"Saving millions on fuel costs"

There is very little energy wasted in copper wiring, especially in airplanes! Moving to a material of higher conductivity will result in minuscule savings, and will be nowhere remotely close to covering the cost of the (extremely expensive) materials.

They aren't going to save fuel because it is more conductive. They aren't burning tons of fuel because of transmission losses from one end of the plane to the other.

They are going to save fuel because the nanotube wires will be lighter than the copper wires we use now. Less weight == less fuel.

Re:Calling BS (1)

Rakshasa Taisab (244699) | more than 4 years ago | (#29466863)

No no, obviously they're currently pushing fuel through those copper wires, and the nanotube things are going to percolate the fuel much better.

Re:Calling BS (1)

CyberK (1191465) | more than 4 years ago | (#29467337)

But I dare say that military perspective is not on saving fuel costs. After all, why save money by putting in a smaller fuel tank when you can keep it the same size and use the fuel savings to fly further/faster?

Re:Calling BS (2, Informative)

Gravitron 5000 (1621683) | more than 4 years ago | (#29466685)

It's not about resistive losses. It's about weight. Also carbon nanotubes haven't benefited from any economy of scale efficiencies, and hence the cost is likely to be much less once they are able to be manufactured in quantity. It's not like carbon is a rare material.

Re:Calling BS (1)

MyLongNickName (822545) | more than 4 years ago | (#29466697)

There is very little energy wasted in copper wiring

Weight is decreased, saving the fuel, not energy conduction.

Re:Calling BS (0)

Anonymous Coward | more than 4 years ago | (#29466711)

its the weight not the efficiency of the conductor that would save fuel...

Re:Calling BS (3, Informative)

e4g4 (533831) | more than 4 years ago | (#29466797)

A 747 has approximately 190,000 feet of copper wiring - per this [] . I would imagine that that translates to quite a bit of weight - if that weight were to be reduced significantly (by half or better) - the fuel savings would not be negligible. The other place suggested for their usage was in satellites - which is a market where the cost is per kilogram - and satellites, as they are now, I'm sure owe quite a bit of their weight to the wiring that makes them function.

Re:Calling BS (1)

sarlos (903082) | more than 4 years ago | (#29467207)

Carbon Nanotubes are, quoting from the article, "stronger than steel and lighter than plastic." The fuel cost savings comes from the decreased weight, not the better conductivity.

Not so great (1, Funny)

Anonymous Coward | more than 4 years ago | (#29466511)

I've tried these sheets -- they're scratchy, and they won't stay tucked in under the mattress!

Re:Not so great (0)

Anonymous Coward | more than 4 years ago | (#29466785)

I've tried these sheets -- they're scratchy, and they won't stay tucked in under the mattress!

It seems silly to put them in your bed. You don't need protection from someone firing blanks.

Have they resolved the problem (1)

Phizzle (1109923) | more than 4 years ago | (#29466769)

of carbon nanotubes causing cancer? I am aware of several studies that show this stuff behaving like asbestos. []

Re:Have they resolved the problem (1)

ShadowRangerRIT (1301549) | more than 4 years ago | (#29466961)

That does require you to inhale them. If they're creating sufficiently long tubes with sufficient durability and weaving them together, it's not as much of a problem. After all, you rarely inhale your shirt. :-) That said, I have no doubt it will be less durable than promised and this will be an issue, but they won't bother with safety tests up front because there are no regulation requiring it yet.

The hand that giveth... (1)

sandmaninator (884661) | more than 4 years ago | (#29466921)

"The military also hopes to replace copper wiring in planes and satellites with highly conductive nanotubes, saving millions of dollars in fuel costs."

...and adding millions of dollars in carbon nanotube costs.

Is there anything they CAN'T do... (0)

Anonymous Coward | more than 4 years ago | (#29466987)

Is there anything they CAN'T do with carbon nanotubes? Between them and stem cells, we should be able to build/cure anything anybody ever thought of, according to reports.

Re:Is there anything they CAN'T do... (1)

Byzantine (85549) | more than 4 years ago | (#29467125)

Sadly, carbon nanotubes cannot be made into flying unicorns.

Re:Is there anything they CAN'T do... (0)

Anonymous Coward | more than 4 years ago | (#29467143)

[citation needed]

vs Kevlar (1)

florescent_beige (608235) | more than 4 years ago | (#29467073)

According to wikipedia the density of nanotube is not that much different from Kevlar. Kevlar ~1.4, nanotube ~1.3.

So where's the advantage over Kevlar? It could be that the ballistic performance is much better than Kevlar allowing you to make armor with less material but otherwise this isn't an obviously better material than Kevlar.

In ballistic applications Kevlar will probably continue to win based on cost.

As for structural uses, back in the annals of history aramid fiber (Kevlar) was thought to be the Next Big Thing. Then people started to realize that while very fantastic in tension, aramid has sucky compression properties (using Kevlar has been compared to designing with chain). I wonder if nanotubes will suffer the same fate.

Re:vs Kevlar (0, Offtopic)

MyLongNickName (822545) | more than 4 years ago | (#29467141)

Density is not the issue. Otherwise, we would go with lead. The nanotubes are, apparently, better able to spread an impact over a wider surface. This is the reason Kevlar is used and why nanotubes are being looked at.

Re:vs Kevlar (1)

clone53421 (1310749) | more than 4 years ago | (#29467199)

Um, the idea is lightweight armour that will still stop a round. A 6" steel plate would stop just about anything they can send your way, but you won't be very mobile. Kevlar is lightweight. Carbon nanotubes are even lighter, and apparently they have better force distributing abilities as well, so you also need less thickness.

Re:vs Kevlar (2, Interesting)

florescent_beige (608235) | more than 4 years ago | (#29467365)

There is already a material out there that is better than Kevlar, it's called Spectra. It's an ultra-high molecular weight polyethylene and despite its existence Kevlar continues to be the standard.

Something needs to be *a lot* better to displace an established standard, not just somewhat better.

Violence (5, Funny)

CopaceticOpus (965603) | more than 4 years ago | (#29467185)

This is so typical. Someone discovers how to make a sheet of carbon nanotubes, and the first thing they do is shoot at it. Where is the study telling us how huggable these nanotube sheets might be?

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