This is truly revolutionary! Why expose the patient to the risk of gene-treatment, when a tissue sample can be taken and treated externally, and then returned to the patient as stem cell tissue!
Taken together with this other new breakthrough, the possibilities are endless!
Now professor Feng Wang at UC Berkeley claims to have demonstrated a technology that can electrically tune graphene's bandgap, enabling it to be used for digital transistors long before lithography hits sub-10 nanometer sizes.
"We have for the first time demonstrated that you can use an electric field to open or close a bandgap in graphene," Wang said. "There is no other material available today that can do this, only bilayer graphene."
I think we all need to drink in the implications of this. It means we can dynamically create transistor switches on the fly, like a Field Programmable Gate Array (FPGA). We can do this with existing lithography resolutions, although methods will have to be developed to produce high-quality bilayer graphene in bulk.
I just can't wait until the first graphene microprocessor is produced. Just imagine the processing power it will have, and the low heat dissipation. Once society gets on the graphene road, we'll never look back.
Now a photo-flash effect can be used to create graphene in situ, from graphite oxide.
Just imagine - you could have a thin substrate layer of graphite oxide which you could etch using conventional lithography into a microchip circuit pattern. And then you would use the photo-flash effect to immediately convert it into a graphene chip.
Wow, now that would be amazing!
Re: Leapfrog / Disruptive Technologies
Posted: 25 Jul 2009 13:10
by Neshant
India needs to step up its R&D of direct energy weapons.
Shrink it down, put it on a UAV and crank up the power.
---------------- Microwave weapon will rain pain from the sky
THE Pentagon's enthusiasm for non-lethal crowd-control weapons appears to have stepped up a gear with its decision to develop a microwave pain-infliction system that can be fired from an aircraft.
The device is an extension of its controversial Active Denial System, which uses microwaves to heat the surface of the skin, creating a painful sensation without burning that strongly motivates the target to flee. The ADS was unveiled in 2001, but it has not been deployed owing to legal issues and safety fears.
Nevertheless, the Pentagon's Joint Non-Lethal Weapons Directorate (JNLWD) in Quantico, Virginia, has now called for it to be upgraded. The US air force, whose radar technology the ADS is based on, is increasing its annual funding of the system from $2 million to $10 million.
The transmitting antenna on the current system is 2 metres across, produces a single beam of similar width and is steered mechanically, making it cumbersome. At the heart of the new weapon will be a compact airborne antenna, which will be steered electronically and be capable of generating multiple beams, each of which can be aimed while on the move.
EPI SiC ** First direct observation of a nearly ideal graphene band structure
Authors: M. Sprinkle, D. Siegel, Y. Hu, J. Hicks, P. Soukiassian, A. Tejeda, A. Taleb-Ibrahimi, P. Le Fèvre, F. Bertran, C. Berger, W.A. de Heer, A. Lanzara, E.H. Conrad
Angle-resolved photoemission and X-ray diffraction experiments show that multilayer epitaxial graphene grown on the SiC(000-1) surface is a new form of carbon that is composed of effectively isolated graphene sheets. The unique rotational stacking of these films cause adjacent graphene layers to electronically decouple leading to a set of nearly independent linearly dispersing bands (Dirac cones) at the graphene K-point. Each cone corresponds to an individual macro-scale graphene sheet in a multilayer stack where AB-stacked sheets can be considered as low density faults.
Re: Leapfrog / Disruptive Technologies
Posted: 23 Aug 2009 01:16
by Sanjay M
Team Agni prepares their electric motorcycle entry for the Tourist Trophy eXtreme Grand Prix (TTXGP) race on the Isle of Mann:
Just as we helped change the world by giving it rubber, we could probably develop new forms of graphite/graphene based polymers that would revolutionize a wide variety of technological applications.
Satyendra Bose's brainchild is now realized through the narrow bandwidth of alkali atoms.
With the precise measurements possible from such atoms and their optical transitions, we could see extremely accurate miniaturized inertial guidance systems and gravity wave detectors that expose the nature of the universe to us.
Re: Leapfrog / Disruptive Technologies
Posted: 25 Sep 2009 10:59
by Sanjay M
GE's VP for Advanced Technologies, Michael Idelchik talks about pulse-detonation technology for power generation:
Researchers at Purdue's Birck Nanotechnology Center are collaborating with Indian colleagues at the Jawaharlal Nehru Center for Advanced Scientific Research and General Electric Co.'s John F. Welch India Technology Center to launch a center focused on how advancements in nanomaterials can address growing energy needs.
The Joint Networked Center on Nanomaterials for Energy, funded by the Indo-U.S. Science and Technology Forum, is supporting the exchange of four graduate student researchers, two postdoctoral researchers and two faculty members annually between Purdue and Jawaharlal Nehru Center's International Center for Materials Science in Bangalore, India. The international program also is placing two Purdue graduate student interns at GE's Technology Center each year.
"Students will have the opportunity to spend several months at partner institutions, formulating and working on joint research projects to solidify and expand ongoing collaborations between the Jawaharlal Nehru Center for Advanced Scientific Research and Purdue for advancing research in how nanomaterials can address growing energy needs," said Pankaj Sharma, associate director of operations and international affairs for Purdue's Discovery Park.
Arbinda Mitra, executive director of the Indo-U.S. Science & Technology Forum, said: "There also are internship opportunities for Purdue students to work for up to 20 weeks at GE's Technology Center."
Sending messages using neutrinos could improve data rates by up to three orders of magnitude.
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Gee, I wonder if mastering neutrino communication could even one day enable robust communication underground?
I'm not just talking about the mining industry. For example, what if you were trying to explore underground caves or lava tubes on the Moon or Mars. Radio communications between orbiting satellites and underground rovers would be difficult, if not impossible. But neutrinos could easily pass through entire mountains of rock.
Re: Leapfrog / Disruptive Technologies
Posted: 06 Oct 2009 11:29
by sinha
Sanjay M wrote:Team Agni prepares their electric motorcycle entry for the Tourist Trophy eXtreme Grand Prix (TTXGP) race on the Isle of Mann:
Indian (or is he pakistani?) guy claims to have developed a device that provides over-unity power gain. Hard to believe since it violates the laws of physics but have a look at his device all the same :
