Electron
Scientific Concept
'Frankenstein' fix lets asteroid mission cheat death...announced on Thursday. One engine is still able to spit out positive ions for thrust, but can no longer squirt out negatively charged electrons, a step needed to prevent electric charge buildup on the spacecraft. The team got around this... In this article: Hayabusa, Electron, Electric field, Xenon, and UK |
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New Scientist - Latest Headlines | 1 day ago
Future colliders: Beyond the LHC
...reach of the LHC. However, to study SUSY in detail, a linear collider would be far superior, because the initial energy of the colliding electrons and positrons is exactly known. At the LHC and the sLHC, the energy of the quarks and gluons...
In this article: Boson, Supersymmetry, Positron, Quark, Geneva, and UK
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Guardian | 1 day ago
Yesterday in parliament
...a fluoride atom can change into a fluoride ion". Gove said: "Atoms, whether fluoride or otherwise, are made up of protons, neutrons and electrons. The way in which you transform an atom into an ion is either by adding or taking away an...
In this article: Ed Balls, Harriet Harman, Dennis Skinner, Michael Gove, Atom, Fluoride, and Labour
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Reuters | 1 day ago
Nikkei set to fall after Wall St losses, tech tumble
...but up 66 percent from the same month last year. [ID:nTFA006507] Chip gear makers include Advantest, Nikon Corp <7731. T>, and Tokyo Electron <8035. T> Komatsu Ltd <6301. T> Komatsu's financing business in China is likely to post a...
In this article: JFE, Wall Street, Advantest Corp, US, Tokyo, India, and Semiconductor
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New Scientist - Latest Headlines | 2 days ago
Watch out, roundworms: UV phasers are set to stun
...paralyses roundworms. He thinks that the UV-activated form of the molecule may hamper a key metabolic process in which energy-rich electrons drive the production of the molecules that cells use for fuel. Their own little light bulbs It...
In this article: Paralysis, Molecular electronics, Journal of the American Chemical Society, Simon Fraser University, British Columbia, Canada, and UK
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Technology Review Feed - Tech Review Top Stories | 2 days ago
Thin-Film Solar with High Efficiency
...Solexant cells are printed on a metal foil as the substrate. Nanocrystal films are simple to print but have poor electrical properties. Electrons tend to get trapped between the small particles. "The trick with these cells is how to deposit...
In this article: Solexant, Paul Alivisatos, Semiconductor, University of California, Berkeley, Nanosolar, Lawrence Berkeley National Laboratory, First Solar, and San Jose
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PR Newswire: Health / Biotech | 3 days ago
BeamOne LLC to Add New Ebeam Sterilization Service Center
...Sterilization Service Center Mid-Atlantic and Eastern U.S. medical device / pharmaceutical manufacturers to benefit from new electron beam sterilization service center SAN DIEGO, Nov. 18 /PRNewswire/ -- BeamOne LLC announces that it...
In this article: Pittsburgh, Pennsylvania, Costa Rica, San Diego, Mid-Atlantic, and Colorado
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TIME | 3 days ago
Obama's Asia Trip Distracted by 9/11 Trial News
...news broke at 6 a.m. in New York, just as President Barack Obama was preparing for an evening press conference in Japan. In an age when electrons travel the world in an instant, it took no time at all before everyone knew: Khalid Sheikh...
In this article: Barack Obama, Robert Gibbs, Asia, White House, Greg Craig, Detainee, Khalid Sheikh Mohammed, Guantanamo Bay, and Tokyo
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BBC News | 4 days ago
Night sight
...vacuum tube with an active infrared pigment at one end and a visible pigment at the other. "It uses the photoelectric effect to generate electrons at the infrared end of the tube and then a high voltage to pass them down the tube to where...
In this article: Oxford University, Bisley, Afghanistan, and Taliban
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Science Blog - | 5 days ago
Measuring Electron Orbitals
...was exposed to ultraviolet light that emitted sufficient energy to separate individual electrons from the molecules. The direction and speed of the electrons thus released were then measured using highly-sensitive detectors, generating the...
In this article: Organic semiconductor, University of Graz, University of Leoben, Semiconductor, Fourier Transformation, and Copper
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Centre Daily Times | November 04, 2009
Research and Markets: an Introduction to Nanoelectronic Single-Electron Circuit Design
...Single-Electron Circuit Design" to their offering. In Introduction to Nanoelectronic Single-electron Circuit Design, single-electron circuits are studied as an introduction to the rapidly expanding field of nanoelectronics. The...
In this article: Quantization, University of Notre Dame, Tsinghua University, Dublin, Hungary, and USA
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More on Electron
Description from Wikipedia:
The electron is a subatomic particle that carries a negative electric charge. It has no known substructure and is believed to be a point particle. Electrons participate in gravitational, electromagnetic and weak interactions. Like its rest mass and elementary charge, the intrinsic angular momentum (or spin) of an electron has a constant value. In the collision of an electron and a positron, the electron's antiparticle, both are annihilated. An electron–positron pair can be produced from gamma ray photons with sufficient energy.
The concept of an indivisible amount of electric charge was theorized to explain the chemical properties of atoms, beginning in 1838 by British natural philosopher Richard Laming; the name electron was introduced for this charge in 1894 by Irish physicist George Johnstone Stoney. The electron was identified as a particle in 1897 by J. J. Thomson and his team of British physicists. Electrons are identical particles that belong to the first generation of the lepton particle family. Electrons have quantum mechanical properties of both a particle and a wave, so they can collide with other particles and be diffracted like light. Each electron occupies a quantum state that describes its random behavior upon measuring a physical parameter, such as its energy or spin orientation. Because an electron is a type of fermion, no two electrons can occupy the same quantum state; this property is known as the Pauli exclusion principle.
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