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Paper published on producing arbitrarily long nanotubes.
Ok, I was engaging in a bit of hyperbole there. But even if these methods
could produce arbitrarily long nanotubes at 1/10th the maximum measured nanotube strength, this would be a major change in materials science. Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/n...ce/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- wrote in message ... In sci.physics Robert Clark wrote: American Journal of Nanomaterials Vol. 4, No. 2, 2016, pp 39-43. doi: 10.12691/ajn-4-2-2 | Research Article From Nanoscale to Macroscale: Applications of Nanotechnology to Production of Bulk Ultra-Strong Materials. Robert Clark Department of Mathematics, Widener University, Chester, United States http://pubs.sciepub.com/ajn/4/2/2/index.html Next stop: the space elevator. Nope, the next stop would be ANYTHING practical. Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. The lack of flying cars has never been a materials problem. There have been lots of flying cars built. -- Jim Pennino --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
#13
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Paper published on producing arbitrarily long nanotubes.
"Robert Clark" wrote:
Thanks for taking the time to read it. Right, these now are just proposals. All of them though would be easy and low cost to test for nanotechnology research labs. Everything is always "easy and low cost" until someone has to actually build something and make it work. -- "Some people get lost in thought because it's such unfamiliar territory." --G. Behn |
#14
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Paper published on producing arbitrarily long nanotubes.
In sci.physics Robert Clark wrote:
Ok, I was engaging in a bit of hyperbole there. But even if these methods could produce arbitrarily long nanotubes at 1/10th the maximum measured nanotube strength, this would be a major change in materials science. Bob Clark Only in a few niche applications where weight and strength are competing parameters. For the vast majority of things there is no incentive to build them from nanotubes. ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/n...ce/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- wrote in message ... In sci.physics Robert Clark wrote: American Journal of Nanomaterials Vol. 4, No. 2, 2016, pp 39-43. doi: 10.12691/ajn-4-2-2 | Research Article From Nanoscale to Macroscale: Applications of Nanotechnology to Production of Bulk Ultra-Strong Materials. Robert Clark Department of Mathematics, Widener University, Chester, United States http://pubs.sciepub.com/ajn/4/2/2/index.html Next stop: the space elevator. Nope, the next stop would be ANYTHING practical. Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. The lack of flying cars has never been a materials problem. There have been lots of flying cars built. -- Jim Pennino |
#15
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Paper published on producing arbitrarily long nanotubes.
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#16
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Paper published on producing arbitrarily long nanotubes.
In sci.physics Doc O'Leary wrote:
For your reference, records indicate that wrote: The sole reason that flying cars have never been a commercial success is economics No, its simply because theyre a stupid outdated SF concept birthed from a car-crazed society. Once you have a vehicle that can fly between locations, it makes zero sense to also make it suitable for driving on roads. Who in their right mind is going to *drive* anywhere they could just fly to? Who is going trust that a roadworthy vehicle after miles of driving is going to remain airworthy? In the real world you would never be allowed to land and take off just anywhere for a whole lot of reasons, so you would still need to drive some distance. Designated areas, if such were to ever become common, would likely be at least 10 to 20 miles apart. In the real world, driving a flying car has never made it not airworthy. -- Jim Pennino |
#17
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Paper published on producing arbitrarily long nanotubes.
Doc O'Leary wrote:
For your reference, records indicate that wrote: The sole reason that flying cars have never been a commercial success is economics No, its simply because theyre a stupid outdated SF concept birthed from a car-crazed society. Once you have a vehicle that can fly between locations, it makes zero sense to also make it suitable for driving on roads. Who in their right mind is going to *drive* anywhere they could just fly to? Who is going trust that a roadworthy vehicle after miles of driving is going to remain airworthy? Eliminate the economics problems and flying cars still make no sense. Imagine a world where everyone is Superman. Superman does not drive to the rescue. Only motorheads ever thought flying cars were a good idea. No, Jimp. Flying cars were and are a good idea unless you think you can just land anywhere you like. If you fly a GA aircraft, what do you do once you land it? -- "Some people get lost in thought because it's such unfamiliar territory." --G. Behn |
#18
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Paper published on producing arbitrarily long nanotubes.
In sci.physics Fred J. McCall wrote:
Doc O'Leary wrote: For your reference, records indicate that wrote: The sole reason that flying cars have never been a commercial success is economics No, it?s simply because they?re a stupid outdated SF concept birthed from a car-crazed society. Once you have a vehicle that can fly between locations, it makes zero sense to also make it suitable for driving on roads. Who in their right mind is going to *drive* anywhere they could just fly to? Who is going trust that a roadworthy vehicle after miles of driving is going to remain airworthy? Eliminate the ?economics? problems and flying cars still make no sense. Imagine a world where everyone is Superman. Superman does not drive to the rescue. Only motorheads ever thought flying cars were a good idea. No, Jimp. Flying cars were and are a good idea unless you think you can just land anywhere you like. If you fly a GA aircraft, what do you do once you land it? You are replying to someone else, not me. Once you land the plane, you taxi to the tie down area, tie down and secure the aircraft, then go see the FBO. There will quite often be a dedicated phone to Enterprise. Don't forget to ask for your Aircraft Owners and Pilots Association discount. In the post 9/11 world there is yet another complicaton; all airports have fences around the operating areas, which means if you are not based at the airport and have the ability to open and close the gate, you will have to find someone who does to let you on and off the airport with a flying car. -- Jim Pennino |
#19
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Paper published on producing arbitrarily long nanotubes.
On Thursday, August 25, 2016 at 8:35:20 AM UTC+12, Fred J. McCall wrote:
Doc O'Leary wrote: For your reference, records indicate that wrote: The sole reason that flying cars have never been a commercial success is economics No, it’s simply because they’re a stupid outdated SF concept birthed from a car-crazed society. Once you have a vehicle that can fly between locations, it makes zero sense to also make it suitable for driving on roads. Who in their right mind is going to *drive* anywhere they could just fly to? Who is going trust that a roadworthy vehicle after miles of driving is going to remain airworthy? Eliminate the “economics” problems and flying cars still make no sense. Imagine a world where everyone is Superman. Superman does not drive to the rescue. Only motorheads ever thought flying cars were a good idea. No, Jimp. Flying cars were and are a good idea unless you think you can just land anywhere you like. If you fly a GA aircraft, what do you do once you land it? Drive it away if you own it and you need an airfield. https://www.youtube.com/watch?v=CajAq6ndJYE Let it fly to its next pick up if its automated - after dropping you off precisely where you want to go. https://www.youtube.com/watch?v=1iyCgy1juHc -- "Some people get lost in thought because it's such unfamiliar territory." --G. Behn |
#20
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Paper published on producing arbitrarily long nanotubes.
On Thursday, August 25, 2016 at 4:16:04 AM UTC+12, wrote:
In sci.physics Robert Clark wrote: Ok, I was engaging in a bit of hyperbole there. But even if these methods could produce arbitrarily long nanotubes at 1/10th the maximum measured nanotube strength, this would be a major change in materials science. Bob Clark Only in a few niche applications where weight and strength are competing parameters. For the vast majority of things there is no incentive to build them from nanotubes. ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/n...ce/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- wrote in message ... In sci.physics Robert Clark wrote: American Journal of Nanomaterials Vol. 4, No. 2, 2016, pp 39-43. doi: 10.12691/ajn-4-2-2 | Research Article From Nanoscale to Macroscale: Applications of Nanotechnology to Production of Bulk Ultra-Strong Materials. Robert Clark Department of Mathematics, Widener University, Chester, United States http://pubs.sciepub.com/ajn/4/2/2/index.html Next stop: the space elevator. Nope, the next stop would be ANYTHING practical. Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. The lack of flying cars has never been a materials problem. There have been lots of flying cars built. -- Jim Pennino http://www.sciencedirect.com/science/book/9781455778638 Nanotube Superfiber Materials Changing Engineering Design Edited by:Mark J. Schulz, Vesselin N. Shanov and Zhangzhang Yin ISBN: 978-1-4557-7863-8 Here's a 2013 book on the subject. Please review Chapter 14 – Direct Dry Spinning of Millimeter-long Carbon Nanotube Arrays for Aligned Sheet and Yarn Yoku Inoue Ultralong multiwalled carbon nanotube arrays (forests) were grown by chloride-mediated chemical vapor deposition, in which iron chloride was used as a catalyst precursor. Highly spinnable millimeter-long arrays were grown with a very rapid growth rate of 100 μm/min. By stacking long-lasting carbon nanotube (CNT) webs, unidirectionally aligned CNT sheets were fabricated. The sheet was highly anisotropic in electrical and thermal properties and due to high alignment of the CNTs in the sheets. CNT yarns were fabricated using the millimeter-long CNTs and a detailed analysis of various postspin processes, including postspin twisting and multiply twisting, and their effect on CNT yarns were studied. Mechanical properties clearly depended on the dimensions of CNTs, where thinner and longer CNTs led to strong and stiff yarns. Large contacting surface areas in the yarns, brought by closer packing with high-aspect-ratio CNTs, were effective for higher van der Waals interaction leading to higher tensile properties. Growth of millimeter-long highly spinnable CNT arrays and the material properties of tailored large-scale CNT structures, including unidirectionally aligned sheets and spun yarns, are described. http://www.mie.uth.gr/ekp_yliko/2_ma...harts-2009.pdf Basically, materials that exceed anything known today are already in the lab, and are merely seeking the money to build the tools necessary to make them on a larger scale. The most obvious use is aerospace. Lightweight blow down micro-engines, lightweight high pressure ZBO cryogenic tanks, lightweight airframes, lifting surfaces, thermal surfaces - all can be reinvented using what is known today. Those that bring these research results to fruition first, and do so reliably and cost effectively, will own the aerospace industry going forward - and challenge many other industries as well. |
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