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Keyword: electron

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  • For the First Time, Electrons are Observed Splitting into Smaller Quasi-Particles

    04/20/2012 6:56:50 AM PDT · by zeugma · 25 replies
    Popular Science ^ | 04.19.2012 | Clay Dillow
    For the First Time, Electrons are Observed Splitting into Smaller Quasi-Particles   We generally think of electrons as fundamental building blocks of atoms, elementary subatomic particles with no smaller components to speak of. But according to Swiss and German researchers reporting in Nature this week, we are wrong to think so. For the first time, the researchers have recorded an observation of an electron splitting into two different quasi-particles, each taking different characteristics of the original electron with it. Using samples of the copper-oxide compound Sr2CuO3, the researchers lifted some of the electrons belonging to the copper atoms out of...
  • Electron Filmed for First Time

    02/25/2008 10:54:25 AM PST · by thefactor · 23 replies · 211+ views
    Livescience.com via yahoo ^ | 2/25/08 | Livescience.com
    Scientists have filmed an electron in motion for the first time, using a new technique that will allow researchers to study the tiny particle's movements directly. Previously it was impossible to photograph electrons because of their extreme speediness, so scientists had to rely on more indirect methods. These methods could only measure the effect of an electron's movement, whereas the new technique can capture the entire event. Extremely short flashes of light are necessary to capture an electron in motion. A technology developed within the last few years can generate short pulses of intense laser light, called attosecond pulses, to...
  • Watt a mess! Power lines hit homeowner with financial jolt(Stupidity alert)

    12/28/2006 5:17:17 AM PST · by GQuagmire · 126 replies · 3,682+ views
    Boston Herald ^ | Thursday, December 28, 2006 | Jay Fitzgerald
    A North Attleboro man faces financial ruin because he built a new home so close to dangerous high-voltage transmission lines that fluorescent bulbs inside the house light up without even being plugged in. The electric currents running through the two-story home are considered so potentially harmful that the town’s fire department has strung “caution” tape around the house while an electrical inspector has refused to issue a final permit out of fear someone might get electrocuted. The home’s metallic door knobs and exterior shingles give off mild electric jolts when touched, while flowing currents are strong enough to light up...
  • Electron beams shrink carbon nanotubes to order

    11/14/2006 8:33:13 PM PST · by annie laurie · 7 replies · 537+ views
    NewScientistTech ^ | 13 November 2006 | Tom Simonite
    A way of controllably shrinking carbon nanotubes has been developed by US researchers. They say the technique could someday be used to make faster computers and other novel electronic devices. Carbon nanotubes have been used to make a variety of different nanoscale electronic devices, including sensors and transistors. These can outperform conventional components, working at higher frequencies and sensitivities, thanks to the novel physical and electronic properties of nanotubes. These properties, however, depend strongly on the dimensions of each tube. And, until now, there has been no reliable way to make nanotubes to order. This means "nanotube device fabrication is...
  • 'Electron-spin' trick boosts quantum computing

    08/21/2006 7:17:02 PM PDT · by annie laurie · 28 replies · 760+ views
    NewScientist Tech ^ | 16 August 2006 | Unattributed
    A new silicon chip capable of manipulating the spin of a single electron could ultimately allow futuristic quantum computers to be built using conventional electronic technology, researchers say. A quantum bit, or "qubit", is analogous the bits used in conventional computers. But, instead of simply switching between two states, representing "0" and "1", quantum physics permits a qubit to exist in more than one state simultaneously, until its state is measured. This means quantum computers can essentially perform multiple calculations at once, giving them the potential to be exponentially more powerful than conventional computers ... 'Breakthrough experiment' Researchers have also...
  • Evolution versus Intelligent Design: The God of the Gaps

    03/11/2006 10:35:26 PM PST · by DallasMike · 22 replies · 538+ views
    Stingray: a blog for salty Christians ^ | March 11, 2006 | Michael McCullough
    Joe Carter at The Evangelical Outpost has an outstanding article on the "God of the Gaps." Joe explains in easily understandable terms that the notion "actually encompasses four different views based on distinctions between a “science gap” (a gap in our current scientific knowledge) and a “nature gap” (a break in the continuous cause-effect chain of natural process) that may or may not be bridged by miraculous-appearing theistic action." As technology advances, our science gaps close, but more science gaps often rise up to take their place. For example, we once thought that an electron was a sub-atomic particle that...
  • Molecules build a bridge to spintronics

    08/01/2003 9:39:54 PM PDT · by LibWhacker · 10 replies · 266+ views
    Physics Web ^ | 8/1/03 | Katie Pennicott
    The prospect of a new generation of devices that harness the spin of electrons has moved closer following a recent experiment in the US. Min Ouyang and David Awschalom of the University of California at Santa Barbara have transferred electron spins across molecular 'bridges' between quantum dots for the first time. Even better, the pair found that they could transfer the spins most effectively at room temperature (M Ouyang and D Awschalom 2003 Sciencexpress 1086963). Conventional electronic devices manipulate the flow of electronic charge, but spintronic devices would also exploit the intrinsic angular momentum or spin of electrons. Several proposals...
  • UC Riverside Researchers' Discovery Of Electrostatic Spin Topples Century-old Theory

    04/03/2003 4:14:50 PM PST · by vannrox · 46 replies · 479+ views
    Science Daily ^ | 4-3-2003 | Editorial Staff
    RIVERSIDE, Calif. -- April 2, 2003 -- In a discovery that is likely to impact fields as diverse as atomic physics, chemistry and nanotechnology, researchers have identified a new physical phenomenon, electrostatic rotation, that, in the absence of friction, leads to spin. Because the electric force is one of the fundamental forces of nature, this leap forward in understanding may help reveal how the smallest building blocks in nature react to form solids, liquids and gases that constitute the material world around us. Scientists Anders Wistrom and Armik Khachatourian of University of California, Riverside first observed the electrostatic rotation in...