Comments on: Looong and thin carbon tubes via nanotechnology http://www.foresight.org/nanodot/?p=2493 examining transformative technology Wed, 03 Apr 2013 18:23:47 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: Alvaro Cabal http://www.foresight.org/nanodot/?p=2493#comment-253780 Alvaro Cabal Fri, 01 Jun 2007 23:17:25 +0000 http://www.foresight.org/nanodot/?p=2493#comment-253780 Transmits electricity as efficiently as copper? I thought it was 1000 times better (faster), due to the spiraling movement of the electrons traveling through the CNT...or maybe this number is refering to a "Perfect" CNT, which do not exist yet...Am I right? AL Transmits electricity as efficiently as copper? I thought it was 1000 times better (faster), due to the spiraling movement of the electrons traveling through the CNT…or maybe this number is refering to a “Perfect” CNT, which do not exist yet…Am I right?

AL

]]> By: Anonymous http://www.foresight.org/nanodot/?p=2493#comment-253188 Anonymous Thu, 31 May 2007 13:14:06 +0000 http://www.foresight.org/nanodot/?p=2493#comment-253188 A shame there are no hard numbers. And they avoid the words "space elevator" like the plague ;-) Is this regarded as a good study on Elevator construction? http://www.isr.us/Downloads/niac_pdf/chapter2.html Their nanoyarn looks very clean and regular compared to the micrograph figure 2.2 on that page. But of course, with no scale on the diagram we can't know that the structures are equivalent. If you look closely you can see helical surface detail - but without scale we don't know if these are individual nanotubes or just higher-order threads that compose the yarn. I found an article on Textile World that implies that the tubes are exceeding 2 mm in length (uses the word "millimetres"). http://www.textileworld.com/News.htm?CD=5&ID=12965 This isn't the first article I've seen recently claiming scaled-up production of long nanotubes though. All good news. A shame there are no hard numbers. And they avoid the words “space elevator” like the plague ;-)

Is this regarded as a good study on Elevator construction?

http://www.isr.us/Downloads/niac_pdf/chapter2.html

Their nanoyarn looks very clean and regular compared to the micrograph figure 2.2 on that page. But of course, with no scale on the diagram we can’t know that the structures are equivalent. If you look closely you can see helical surface detail – but without scale we don’t know if these are individual nanotubes or just higher-order threads that compose the yarn.

I found an article on Textile World that implies that the tubes are exceeding 2 mm in length (uses the word “millimetres”).
http://www.textileworld.com/News.htm?CD=5&ID=12965

This isn’t the first article I’ve seen recently claiming scaled-up production of long nanotubes though. All good news.

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