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Home / News / Tags / electron
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The latest association between the scientists from a UK university and the steel industry yielded a photovoltaic paint which, when applied on steel, produces energy.The photovoltaic paint is formed of a paste mix of electrolytes and dye which can be spread on sheets of steel, four layers of paint per sheet. When expo... |
2 October 2008
06:00 GMT |
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The following few years could bring us a ground-shaking new atomic microscope based on the fantastically smooth mirror just developed by the scientists from the Surface Science Laboratory at Universidad Autonoma de Madrid. While this new device type would not provide a much higher resolution than the currently-used e... |
1 October 2008
04:24 GMT |
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Gamma-ray bursts are the brightest and most powerful type of electromagnetic radiation that can be emitted in the universe in the outcome of a violent stellar explosion, whose afterglow remains extremely bright up to several hours after the occurrence of the event that generated it. A new study found that afterglows ... |
9 July 2008
03:42 GMT |
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In 1913, Danish physicist Niels Bohr proposed for the first time a model describing the atom as a system inside which the electrons revolve around a central bundle of matter called nucleus, similarly to the way planets in the solar system move around the Sun. Nearly a decade later, Bohr would receive the Nobel Prize ... |
1 July 2008
04:43 GMT |
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Solar cells have the opportunity to revolutionize the electric energy generation process on Earth, but their use today is highly restricted by the high manufacturing costs and their notorious inefficiency in converting light into electricity. The record conversion efficiency for solar cells has been set a couple of w... |
27 May 2008
06:17 GMT |
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Atoms are formed of a positively charged nucleus - containing protons and neutrons - and an outer shell of electrons spinning around the nucleus. Now, we know that the nucleus is found in the center of the atom, but individual electrons spinning at high speeds around the nucleus are rather hard to localize, which is ... |
16 May 2008
05:07 GMT |
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Rydberg's constant, is a physical measure specifying the exact light frequency given off by an atom while an electron jumps from a certain energy level to a lower one. This number is critical for light spectroscopy techniques trying to determine the concentrations and types of chemical elements inside distant st... |
30 April 2008
09:25 GMT |
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On 30 April 1897, at the Royal Institution Friday Evening Discourse, Joseph John Thomson announced that he had discovered 'corpuscles', bodies smaller than the hydrogen atom and bearing a negative electric charge. These corpuscles were later named 'electrons', and were the first subatomic particle... |
30 April 2008
05:56 GMT |
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Once it was thought that the quantum Hall effect is experienced in materials under the influence of external magnetic fields, albeit Princeton University researchers revealed that it may also be experienced in bulk bismuth-antimony crystal without any interference from magnetic fields. The discovery could possibly le... |
25 April 2008
10:40 GMT |
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The Standard Model describes most of the properties of fundamental particles, however it is far from being perfect. The Standard Model cannot explain why charge is experienced in electron units, nor how certain particles acquire neutral charge and if whether the charge of an atom with equal numbers of protons and ele... |
19 April 2008
05:50 GMT |
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Superconductivity was discovered at the beginning of the 20th century, when scientists started experimenting with mercury cooled down to temperatures only 4 degrees above absolute zero. They observed that, during the transition to a superconducting state, materials started to experience electrical resistance close to... |
11 April 2008
05:51 GMT |
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Typical computers today have two main components interacting with each other dynamically in order to process data: the central processing unit and the memory core. The memory core of the computer relies mostly on magnetic components, while the central processing unit uses electrical signals to operate. Nonetheless, U... |
8 April 2008
06:44 GMT |
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The Thomson-Radiate Extreme X-ray Source is an energetic light source emitting picosecond laser pulses and possibly one of the brightest laser light sources in the world at this moment. T-REX is a LLNL project developed in collaboration with the NIF & Photon Science Principle Directorate and the Physical Sciences Dir... |
7 April 2008
04:01 GMT |
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Graphene, the material discovered by professor Andre Geim and Dr Kostya Novoselov in 2004, was recently used by researchers from The University of Manchester to make direct measurements on the fundamental constants of the universe. The research conducted by professor Andre Geim, took place at The School of Physics an... |
4 April 2008
02:52 GMT |
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Based on a prediction made more than three decades ago, CLEO physicists conducting a high-energy experiment claim to have discovered a new sub-atomic particle named 'charmed-strange meson'. The discovery of a new type of meson may be a pivotal point in particles physics and cosmology in special, by observin... |
11 March 2008
07:47 GMT |
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The electron has been a theoretical thing for a long time. Like something you know for sure it exists, but you cannot show it to the others. But now you can. In a research published in the "Physical Review Letters," researchers have filmed an electron for the first time ever, moving on a light wave after just having ... |
25 February 2008
02:38 GMT |
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Polar lights (aurorae) have been described since Antiquity. Aristotle and Pliny wrote about the fear triggered by the arctic aurora, which people thought to forecast great adversities. Often, these red lights were taken as coming from a large fire. During the Roman emperor Tiberius, Roman cohorts run to save the Osti... |
20 February 2008
08:38 GMT |
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Quantum tunneling represents a quantum mechanics phenomenon, which allows a given particle to violate certain classical mechanics principles. For example, in order to extract an electron from the atom, one must contribute with an input of energy equal to or higher than that of the respective electron. However, quantu... |
26 January 2008
06:35 GMT |
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Solid-state light emitting devices have great versatility, as they produce intense light, a great variety of colors, and can use tunable power sources. On the other hand, they share a dirty little secret. The semiconductor nanostructure tends to emit light in pulses, blinking on and off as the lights in a Christmas t... |
24 January 2008
07:44 GMT |
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Usually, two-quark particles such as pions are absorbed into the atomic nucleus right after they are produced, but in some cases they can escape, and are ejected out of the system. Their low energy makes the detection close to impossible, thus they are called color transparent particles. A new study believes otherwis... |
21 January 2008
06:53 GMT |
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While analyzing 2004 satellite images of the poles above the Antarctic, researchers stumbled upon a new type of aurora. Better known are the conventional aurora borealis in the Arctic and aurora australis in the Antarctic, appearing like curtains of brightly colored light in the polar atmosphere. The light is emitted... |
8 November 2007
03:17 GMT |
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Nanotechnology is the way to go, scientists say. As science evolves towards smaller devices, single electron devices are considered one way for computing and other electronic applications and also provide a way to better understand the quantum state in a controllable manner.Researches in Korea might have already foun... |
7 November 2007
07:11 GMT |
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The Antares telescope is designed to detect quantum particles, called neutrinos. However, during tests, the primary detector of the telescope seemed to be able to distinguish between marine species, and is now adapted for marine life and sea health observation.When completed, the installation will be composed of 12 ... |
29 October 2007
10:27 GMT |
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The silicon transistor was invented in 1947 at Bell Laboratories and most electronic circuits are based on it, such as radios, televisions and computers. Although it is the most reliable electronic component that switches currents, it has great disadvantages. We all know the basic language of the computer circuits is... |
27 October 2007
04:22 GMT |
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A truly rare opportunity presented itself to astronomers, allowing the conjunction of ground-based instrumentation and a dozen satellites in order to explain the mysterious phenomenon of "killer" electrons.They are an occurrence in space above Earth, where plasma that is constantly ejected from the Sun's upper ... |
26 July 2007
09:07 GMT |
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Rock carving, created by removing parts of a rock surface, are found worldwide and are often (but not always) associated with prehistoric peoples. They are some of the first forms of art and precursors of technology and writing systems.Modern day nanoscopic carvings are an expression of the most modern technologies ... |
19 June 2007
05:55 GMT |
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Curium (Cm) is a strange element, a heavy actinide that behaves strangely under extreme pressure. Now, a new study provides a better understanding of how the crystal structure of some metals becomes stable through magnetism.It's a synthetic radioactive metallic transuranic element of the actinide series, produc... |
7 June 2007
05:14 GMT |
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Qubits are single units of quantum information, based on the fact that quantum states can be interpreted as information, which can be compressed in a state and stored on a smaller number of states. Most researchers seem to think photons will be the next step in computing technology, creating the supercomputers of th... |
26 May 2007
05:40 GMT |
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Electron correlation is a relatively new concept and it deals with mutual dependence between electrons, summarizing the effects of the repulsion forces acting in the spaces between electrons. It specifically handles the way this repulsion influences the spatial and dynamical motion of the electrons. The concept is ... |
15 May 2007
10:26 GMT |
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Quasicrystals are weird structures, aperiodic structures (aperiodic = lack of translational symmetry, which means that a shifted copy will never match exactly its original) that differ from crystals by lacking the regular repeating structure of crystal structures. The first officially reported case of what came to b... |
15 May 2007
09:47 GMT |
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Talking about being in the right place at the right time, this is exactly what allowed ESA's Cluster spacecraft to make a startling discovery. The Cluster mission is an European Space Agency (ESA) unmanned space mission mission to study the Earth's magnetosphere using four identical spacecraft flying in a ... |
14 May 2007
10:32 GMT |
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White noise has been made popular by a Hollywood movie bearing the same name, where the main character, an architect, has a burning desire to speak with his wife from beyond the grave, which becomes an obsession with supernatural repercussions. To do that, he starts recording white noise, or background noise, where... |
10 May 2007
02:49 GMT |
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Ununbium (Uub) is the 112th element of the periodic table, often alternatively called eka-mercury and a systematic temporary element, part of the superheavy elements called transactinides.Usually, researchers have a hard time catching the slightest glimpse of the superheavy elements at the far edge of the periodic ... |
4 May 2007
09:29 GMT |
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A single isolated burst of extreme-ultraviolet light has been created by researchers in Italy and it's the shortest artificial light pulse yet, lasting for only 130 attoseconds (billionths of a billionth of a second).It's been dubbed the Attoway and it is supposed to help scientists understand and control... |
2 May 2007
08:46 GMT |
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A new system for manipulating and accurately positioning individual nanowires on semiconductor wafers has been developed by researchers at the National Institute of Standards and Technology (NIST). Nanowires can be defined as structures that have a lateral size constrained to tens of nanometers or less and an uncons... |
30 April 2007
02:41 GMT |
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The periodic table of the chemical elements is a tabular method of displaying the chemical elements, devised by the Russian chemist Dmitri Mendeleev in 1869. Mendeleev intended the table to illustrate recurring ("periodic") trends in the properties of the elements. The layout of the table has been refined and exten... |
25 April 2007
05:53 GMT |
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There has been a concerted effort to find alternate mechanisms that can provide higher accelerating gradient. These involve acceleration by fields induced in plasmas and acceleration by focused short laser pulses.Physicist Chris Sears and his team at the Next Linear Collider Test Accelerator (NLCTA) are replacing mi... |
23 April 2007
05:37 GMT |
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Electrons have a negative charge and are glued into atoms by the attractive force of its positively charged nucleus. In classical physics, an electron could not escape from an atom unless it received enough energy to overcome this force by ascending the nucleus' "potential barrier".But quantum mechanics allows ... |
5 April 2007
05:41 GMT |
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Scientists have come up with a new tantalizing hypothesis about a new state of matter and space-time. "Twenty five years ago we thought we understood everything about how matter changes phase. Then along came an experiment that opened up a whole new world", said Xiao-Gang Wen at the Massachusetts Institute of Technol... |
15 March 2007
10:12 GMT |
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