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JILA Team Demonstrates 'A New Way of Lasing': A 'Superradiant' Laser
2012-04-06 03:23:58

[ Watch the Video ] Physicists at JILA have demonstrated a novel “superradiant” laser design, which has the potential to be 100 to 1,000 times more stable than the best conventional visible lasers. This type of laser could boost the performance of the most advanced atomic clocks and related technologies, such as communications and navigation systems as well as space-based astronomical instruments. Described in the April 5, 2012, issue of Nature,* the JILA laser prototype...

2012-04-05 21:22:32

New work suggests constructing novel particle opens the door to taming the mysteries of quantum tunneling Scientists at the Cavendish Laboratory in Cambridge have used light to help push electrons through a classically impenetrable barrier. While quantum tunneling is at the heart of the peculiar wave nature of particles, this is the first time that it has been controlled by light. Their research is published today, 05 April, in the journal Science. Particles cannot normally pass through...

World’s Most Sensitive Nanomechanical Sensor Revealed
2012-04-04 12:22:20

A team of physicists in Barcelona, Spain have for the first time fabricated and tested the world´s most sensitive Nanomechanical sensor, capable of detecting changes in mass of 1.7 yoctograms -- roughly the mass of a single proton. Team leader Professor Adrian Bachtold, of Catalan Institute of Technology´s Quantum NanoElectronics Group, and colleagues used the sensor, which is similar to a guitar string vibrating at very high frequencies (2 GHz), to compare the resonating...

New Isotope Measurement Could Alter History Of Early Solar System
2012-04-04 03:24:53

The early days of our solar system might look quite different than previously thought, according to research at the U.S. Department of Energy´s (DOE) Argonne National Laboratory published in Science. The study used more sensitive instruments to find a different half-life for samarium, one of the isotopes used to chart the evolution of the solar system. “It shrinks the chronology of early events in the solar system, like the formation of planets, into a shorter time span,”...

2012-03-30 07:50:23

Physicists at the University of California, San Diego have discovered patterns which underlie the properties of a new state of matter. In a paper published in the March 29 issue of the journal Nature, the scientists describe the emergence of “spontaneous coherence,” “spin textures” and “phase singularities” when excitons–the bound pairs of electrons and holes that determine the optical properties of semiconductors and enable them to function as...

2012-03-29 02:28:20

Scientists discover zero-sound oscillations of atomic wavelength in super-chilled helium Scientists working at the Institut Laue-Langevin, one of the world's leading centres for neutron science, have carried out the first investigation of two-dimensional fermion liquids using neutron scattering, and discovered a new type of very short wave-length density wave. The team believe their discovery will interest researchers looking at electronic systems, since high temperature superconductivity...

2012-03-29 00:11:57

Wave Properties of Individual Heavy Molecules Can Also Be Observed Experimentally/Video Shows Development of Interference Pattern in (Nearly) Real Time Quantum theory describes the world of atoms very precisely. Still, it defies our macroscopic conception of everyday´s world due to its many anti-intuitive predictions. The wave-particle dualism probably is the best known example and means that matter may spread and interfere like waves. Now, an international team of researchers has...

2012-03-26 23:34:36

New physical attraction between ions in quantum plasmas Nowadays, ever smaller and more powerful computer chips are in demand. RUB physicists have discovered a new physical attraction that accelerates this progress. Prof. Dr. Padma Kant Shukla and Dr. Bengt Eliasson found a previously unknown phenomenon in quantum plasmas. A negatively charged potential makes it possible to combine positively charged particles (ions) in atom-like structures within the plasma. In this way, current can be...

Spoofing Flaw Discovered In Safari Mobile Browser
2012-03-24 07:41:24

Computer security experts have discovered a new vulnerability in Apple's mobile Safari web browser that can make it look like a user is visiting one website when, in actuality, they are looking at a page located elsewhere. According to Andrew Webster of The Verge, the security flaw is present in Safari for iOS 5.1 and was discovered earlier this month by members of the Germany security firm MajorSecurity. The vulnerability "makes it possible to put a spoof URL in the address bar to trick...


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Web Feed
2013-02-17 09:41:03

Image Caption: This icon, known as the "feed icon" or the "RSS icon", was introduced in Mozilla Firefox in order to indicate a web feed was present on a particular web page that could be used in conjunction with the Live bookmarks function. Microsoft Internet Explorer, Opera and some other browsers have adopted the icon in order to promote a de facto standard. Credit: Mozilla/Wikipedia A web feed is a data format that provides the user with regularly updated content. It is also...

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Word of the Day
out-herod
  • In the phrase to out-herod Herod, to be more violent than Herod (as represented in the old mystery plays); hence, to exceed in any excess of evil.
Herod refers to 'Herod the Great,' a Roman client king and 'a madman who murdered his own family and a great many rabbis.' According to the OED, the term is 'chiefly with allusion to Shakespeare's use' in Hamlet.
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