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Rescooped by Occam's Ocarina from Amazing Science
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Graphene-based computer would be 1,000 times faster than silicon-based, use 100th the power

Graphene-based computer would be 1,000 times faster than silicon-based, use 100th the power | The Razor's Edge | Scoop.it

A future graphene-based transistor using spintronics could lead to tinier computers that are a thousand times faster and use a hundredth of the power of silicon-based computers. The radical transistor concept, created by a team of researchers at Northwestern University, The University of Texas at Dallas, University of Illinois at Urbana-Champaign, and University of Central Florida, is explained this month in an open-access paper in the journal Nature Communications.

 

Transistors act as on and off switches. A series of transistors in different arrangements act as logic gates, allowing microprocessors to solve complex arithmetic and logic problems. But the speed of computer microprocessors that rely on silicon transistors has been relatively stagnant since around 2005, with clock speeds mostly in the 3 to 4 gigahertz range.

 

The researchers discovered that by applying a magnetic field to a graphene ribbon (created by unzipping a carbon nanotube), they could change the resistance of current flowing through the ribbon. The magnetic field — controlled by increasing or decreasing the current through adjacent carbon nanotubes — increased or decreased the flow of current.

 

A cascading series of graphene transistor-based logic circuits could produce a massive jump, with clock speeds approaching the terahertz range — a thousand times faster.* They would also be smaller and substantially more efficient, allowing device-makers to shrink technology and squeeze in more functionality, according to Ryan M. Gelfand, an assistant professor in The College of Optics & Photonics at the University of Central Florida.

 

The researchers hope to inspire the fabrication of these cascaded logic circuits to stimulate a future transformative generation of energy-efficient computing.


Via Dr. Stefan Gruenwald
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Rescooped by Occam's Ocarina from iGeneration - 21st Century Education (Pedagogy & Digital Innovation)
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The MEGALIST for RESEARCH: Everything Your Students Will Need! by Julie Greller

The MEGALIST for RESEARCH: Everything Your Students Will Need! by Julie Greller | The Razor's Edge | Scoop.it
“ This page is constantly evolving. The recent "fake news" explosion prompted me to put all resources in one spot for our students”
Via Tom D'Amico (@TDOttawa)
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Rescooped by Occam's Ocarina from Dyslexia, Dyspraxia, Dysgraphia, ADD, ADHD, LD, GENDER DISORDER, Autism AWARENESS
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Autism was key to human evolution, new study claims 

Autism was key to human evolution, new study claims  | The Razor's Edge | Scoop.it
A high number of people not diagnosed with autism have autistic traits too. Genetic research has revealed that autism and autistic traits have been part of what makes us human for a long time.

Via Collection of First
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