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How Size Matters For Catalysts: Study Links Size, Activity, Electronic Properties

How Size Matters For Catalysts: Study Links Size, Activity, Electronic Properties

Nanotechnology / Nanomaterials

created Nov 05, 2009 | popularity 3.7 / 5 (3) | comments 0

(PhysOrg.com) -- University of Utah chemists demonstrated the first conclusive link between the size of catalyst particles on a solid surface, their electronic properties and their ability to speed chemical ...


New Digital 'Electronics' Concept May Continue Moore's Law

New Digital 'Electronics' Concept May Continue Moore's Law

Nanotechnology / Nanophysics

created Nov 05, 2009 | popularity 4.6 / 5 (53) | comments 9

(PhysOrg.com) -- Computers of the future could be operating not on electrons, but on tiny waves traveling through an electron "fluid," if a new proposal is successful. The new circuit design, recently introduced ...


Fantastic Voyage

Fantastic Voyage

Space & Earth / Space Exploration

created Nov 02, 2009 | popularity 4.8 / 5 (19) | comments 3

By travelling to the outer solar system, the two Voyager spacecraft allowed us to see amazing details of far-distant planets and moons.


Electron self-injection into an evolving plasma bubble

Electron self-injection into an evolving plasma bubble

Physics / Plasma Physics

created Nov 02, 2009 | popularity 4.7 / 5 (3) | comments 1

Particle accelerators are among the largest and most expensive scientific instruments. Thirty years ago, theorists John Dawson and Toshiki Tajima proposed an idea for making them thousands of times smaller: ...


Flipping a photonic shock wave

Flipping a photonic shock wave

Physics / Optics & Photonics

created Nov 02, 2009 | popularity 4.7 / 5 (3) | comments 2

A team of physicists has directly observed a reverse shock wave of light in a specially tailored structure known as a left-handed metamaterial. Although it was first predicted over forty years ago, this is ...


Fermi telescope detects gamma-ray from 'star factories' in other galaxies

Fermi Telescope Detects Gamma-Ray From 'Star Factories' in Other Galaxies

Space & Earth / Astronomy

created Nov 02, 2009 | popularity 4 / 5 (2) | comments 0

Nearby galaxies undergoing a furious pace of star formation also emit lots of gamma rays, say astronomers using NASA's Fermi Gamma-ray Space Telescope. Two so-called "starburst" galaxies, plus a satellite ...


High-precision measurements confirm cosmologists' standard view of the universe

Precise picture of early Universe supports 'dark matter' theory

Space & Earth / Astronomy

created Nov 02, 2009 | popularity 4.8 / 5 (16) | comments 9

A detailed picture of the seeds of structures in the universe has been unveiled by an international team co-led by a Cardiff University scientist.


Creating a six-qubit cluster state

Physics / Quantum Physics

created Nov 02, 2009 | popularity 4.6 / 5 (10) | comments 2

(PhysOrg.com) -- Many scientists believe that quantum entanglement is required in order for effective quantum computing. Entanglement takes place when there is a connection that exists between two objects - even when they ...


Laser-plasma accelerators ride on Einstein's shoulders

Laser-plasma accelerators ride on Einstein's shoulders

Physics / Plasma Physics

created Nov 02, 2009 | popularity 5 / 5 (19) | comments 0

Using Einstein's theory of special relativity to speedup computer simulations, scientists have designed laser-plasma accelerators with energies of 10 billion electron volts (GeV) and beyond. These systems, ...


Laser accelerated protons to the highest energies so far

Researchers use trident laser to accelerate protons to record energies

Physics / General Physics

created Nov 02, 2009 | popularity 4.7 / 5 (6) | comments 10

An international team of physicists at Los Alamos National Laboratory has succeeded in using intense laser light to accelerate protons to energies never before achieved. Using this technique, scientists can ...


A Mars Rover Named 'Curiosity'

A Mars Rover Named 'Curiosity'

Space & Earth / Space Exploration

created Oct 30, 2009 | popularity 4.9 / 5 (18) | comments 2

(PhysOrg.com) -- If you found your grandmother's diary, tattered and dust covered, up in the attic, would you read it? Of course you would. Granny was a pistol! Brush off the dust, open up the little book, ...


Superstring theory useful for experimental physics

Superstring theory useful for experimental physics

Physics / General Physics

created Oct 30, 2009 | popularity 3.8 / 5 (24) | comments 9

Superstring theory aims to explain the laws of physics from extremely small strings in various states. Theoretical superstring theory is therefore normally not considered to be particularly relevant for practical ...


Dark matter sleuths to design world's largest WIMP catcher

Physics / General Physics

created Oct 29, 2009 | popularity 4 / 5 (6) | comments 0

A team of researchers led by a Case Western Reserve University physicist is planning the world's largest, most sensitive experiment to catch the stuff of dark matter, stuff that's proved way beyond invisible.


Researchers create nanoparticle coating to prevent freezing rain buildup (w/ Video)

Chemistry / Materials Science

created Oct 29, 2009 | popularity 3 / 5 (2) | comments 1

(PhysOrg.com) -- Preventing the havoc wrought when freezing rain collects on roads, power lines, and aircrafts could be only a few nanometers away. A University of Pittsburgh-led team demonstrates in the Nov. 3 edition of ...


Roadrunner supercomputer models nonlinear physics of high-power lasers

Physics / Plasma Physics

created Oct 28, 2009 | popularity 4 / 5 (4) | comments 1

For years scientists have struggled with the difficult physics of inertial confinement fusion. This is the attempt to compress a target capsule containing isotopes of hydrogen with high-powered lasers to high enough pressure ...