Macroscopic invisible cables.
This is not just theoretical because DARPA/MIT has already produced one foot long carbon nanotubes and should have one meter long carbon nanotubes by the end of this year or early in 2009.
Spiders suggest to us that producing high strength over density ratio invisible cables could be of great importance. In this paper we show that such invisible cables could in principle be built, thanks to carbon nanotube bundles. Theoretical strength of ~10 MPa, Young’s modulus of ~0.1 GPa and density of ~0.1 Kg/m3 are estimated. The theoretical strength over density ratio is huge, i.e. that of a single carbon nanotube; the strength of a real, thus defective, invisible cable is estimated to be ~1 MPa. Finally, we demonstrate that such cables can be easily transported in their visible state (with bunched nanotubes) and that an efficient anti-bunching controllable mechanism, involving pressure of ~1 Pa, can control the visible–invisible transition, and vice versa.
New Scientist indicates being narrower than the wavelength of light, carbno nanotubes are normally invisible – as long as they are separated by more than one wavelength
Nicola Pugno of the Polytechnic of Turin in Italy has calculated how many nanotubes would be needed to support a person, taking into account small defects that develop in the tubes during manufacture. When held 5 micrometres apart, to keep them invisible, they would form a cable only 1 centimetre in diameter weighing a mere 10 milligrams per kilometre.
Applications: better live magic shows. More effective garrots and decapitation traps. Live shows with Matrix movie like wire work.
These and keeping the carbon nanotubes invisible while very interesting and havnig uses will ultimately be cool yet trivial applications. The big applications are increasing production and lowering costs to increase the strength to weight ratio of materials used to build car, planes, buildings and other applications. Performance and efficiency can be radically increased and transform society.
Wang is a prolific business-oriented writer of emerging and disruptive technologies. He is known for insightful articles that combine business and technical analysis that catches the attention of the general public and is also useful for those in the industries. He is the sole author and writer of nextbigfuture.com
, the top online science blog. He is also involved in angel investing and raising funds for breakthrough technology startup companies.
He gave the recent keynote presentation at Monte Jade event with a talk entitled the Future for You. He gave an annual update on molecular nanotechnology at Singularity University on nanotechnology, gave a TEDX talk on energy, and advises USC ASTE 527 (advanced space projects program). He has been interviewed for radio, professional organizations. podcasts and corporate events. He was recently interviewed by the radio program Steel on Steel on satellites and high altitude balloons that will track all movement in many parts of the USA.
He fundraises for various high impact technology companies and has worked in computer technology, insurance, healthcare and with corporate finance.
He has substantial familiarity with a broad range of breakthrough technologies like age reversal and antiaging, quantum computers, artificial intelligence, ocean tech, agtech, nuclear fission, advanced nuclear fission, space propulsion, satellites, imaging, molecular nanotechnology, biotechnology, medicine, blockchain, crypto and many other areas.