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Proposed Spacetime Structure Could Provide Hints for Quantum Gravity Theory

Proposed Spacetime Structure Could Provide Hints for Quantum Gravity Theory

Physics / Quantum Physics

created Dec 16, 2009 | popularity 4.6 / 5 (54) | comments 15

(PhysOrg.com) -- Spacetime, which consists of three dimensions of space and one time dimension, is such a large, abstract concept that scientists have a very difficult time understanding and defining it. Moreover, ...


Researchers Design Triple Quantum Dot for Quantum Information Applications

Researchers Design Triple Quantum Dot for Quantum Information Applications

Nanotechnology / Nanophysics

created Nov 30, 2009 | popularity 4.7 / 5 (18) | comments 0

(PhysOrg.com) -- While quantum dots have existed since the 1980s, only in the past decade have physicists successfully created lateral few-electron single quantum dots. These quantum dots enable physicists ...


Single-atom transistor discovered

Scientists build 'single-atom transistor'

Nanotechnology / Nanophysics

created Dec 06, 2009 | popularity 4.9 / 5 (35) | comments 3

(PhysOrg.com) -- Researchers from Helsinki University of Technology (Finland), University of New South Wales (Australia), and University of Melbourne (Australia) have succeeded in building a working transistor, ...


Facebook profiles capture true personality, according to new psychology research

Medicine & Health / Psychology & Psychiatry

created Dec 01, 2009 | popularity 5 / 5 (4) | comments 0

Online social networks such as Facebook are being used to express and communicate real personality, instead of an idealized virtual identity, according to new research from psychologist Sam Gosling at The University of Texas ...


Spin polarization achieved in room temperature silicon

Spin polarization achieved in room temperature silicon

Physics / General Physics

created Nov 27, 2009 | popularity 4.8 / 5 (21) | comments 0

(PhysOrg.com) -- A group in The Netherlands has achieved a first: injection of spin-polarized electrons in silicon at room temperature. This has previously been observed only at extremely low temperatures, ...


Marohn describes breakthrough imaging technology

Researchers are on the path to creating nano-MRI images

Physics / General Physics

created Dec 22, 2009 | popularity 4.7 / 5 (6) | comments 1

(PhysOrg.com) -- Cornell researchers are devising methods to detect the magnetic fields of individual electrons and atomic nuclei, which they hope to use to make a nanoscale version of magnetic resonance imaging.


Ardi

Science's breakthrough of the year: Uncovering 'Ardi'

Other Sciences / Other

created Dec 17, 2009 | popularity 2.3 / 5 (3) | comments 2

The research that brought to light the fossils of Ardipithecus ramidus, a hominid species that lived 4.4 million years ago in what is now Ethiopia, has topped Science's list of this year's most significant s ...


Our devices will spin denser webs of data in 2010s (AP)

Our devices will spin denser webs of data in 2010s

Electronics / Consumer & Gadgets

created Dec 15, 2009 | popularity 5 / 5 (5) | comments 0

(AP) -- Ten years ago, we would have been blown away by a cell phone with far more computing power and memory than the average PC had in 1999, along with a built-in camera and programs to manage every aspect ...


MESSENGER team releases first global map of mercury

MESSENGER team releases first global map of mercury

Space & Earth / Space Exploration

created Dec 15, 2009 | popularity 5 / 5 (7) | comments 0

(PhysOrg.com) -- NASA's MESSENGER mission team and cartographic experts from the U. S. Geological Survey have created a critical tool for planning the first orbital observations of the planet Mercury - a global ...


A new kind of micro-mobility: Moving tiny particles using magnetic fields

A new kind of micro-mobility: Moving tiny particles using magnetic fields (w/ Video)

Physics / General Physics

created Dec 14, 2009 | popularity 3.7 / 5 (3) | comments 0

(PhysOrg.com) -- A new microscopic system devised by researchers in MIT's Department of Materials Science and Engineering could provide a novel method for moving tiny objects inside a microfluidic chip, and ...


Toshiba develops essential technology for spintronics-based MOS field-effect transistor

Toshiba develops essential technology for spintronics-based MOS field-effect transistor

Technology / Semiconductors

created Dec 09, 2009 | popularity 4.5 / 5 (11) | comments 1

(PhysOrg.com) -- Toshiba Corporation today announced that it has developed MOSFET cell based on spin transport electronics, or spintronics, an advanced semiconductor technology that makes use of the spin and ...


Gift Guide: High-tech happiness for $100 or less (AP)

Gift Guide: High-tech happiness for $100 or less

Electronics / Consumer & Gadgets

created Dec 04, 2009 | popularity not rated yet | comments 0

(AP) -- No one's going to blame you for keeping holiday gifts minimal this year. But if you want to round out your handmade cards, scarves, pickles and jam with a gadget or gizmo, here are a handful of our ...


Grooving Down the Helix

Grooving down the helix: Researchers show how proteins slide along DNA to carry out vital biological processes

Biology / Biotechnology

created Dec 03, 2009 | popularity 4 / 5 (3) | comments 0

(PhysOrg.com) -- A team of scientists has made a major step in understanding how molecules locate the genetic information in DNA that is necessary to carry out important biological processes.


Researchers put a new spin on atomic musical chairs

Researchers put a new spin on atomic musical chairs

Nanotechnology / Nanophysics

created Dec 02, 2009 | popularity 5 / 5 (4) | comments 0

Researchers from the National Institute of Standards and Technology and the Naval Research Laboratory have developed a new way to introduce magnetic impurities in a semiconductor crystal by prodding it with ...


Spinons -- confined like quarks

Physics / General Physics

created Nov 29, 2009 | popularity 4.5 / 5 (16) | comments 2

The concept of confinement is one of the central ideas in modern physics. The most famous example is that of quarks which bind together to form protons and neutrons. Now Prof. Bella Lake from Helmholtz-Zentrum Berlin (Germany) ...