Massive X-ray superbursts near the surface of neutron stars are providing a unique window into the operation of fundamental forces of nature under extreme conditions. The importance of discovering an unknown energy source of titanic magnitude in the outermost layers of accreting neutron star surfaces is heightened by the unresolved issue of neutrino masses, the recent discovery of the Higgs boson ...
An international team of astronomers, led by a University of Arizona graduate student, has...
After intense preparations and consensus building, CERN has confirmed that the SCOAP3 Open...
Two EPFL scientists have shown how to achieve a dramatic increase in the capacity of optical...
In these parts, a pay phone is a visitor's best option for reaching the rest of the world. A cell phone signal is an hour away by car. Wifi is forbidden. The radio plays nothing but static. And other than the occasional passing pickup truck whose driver offers a wave, it's dead silent.
With the help of NASA's Chandra X-ray Observatory and the Australia Telescope Compact Array, an international team of astronomers has identified the glowing wreck of a star that exploded a mere 2,500 years ago — the blink of an eye in astronomical terms.
A team of researchers from the IMP Vienna together with collaborators from the Vienna University of Technology established a new microscopy technique which greatly enhances resolution in the third dimension.
They are the coldest objects in the Universe and are so fragile that even a single photon can heat and destroy them. Known as Bose-Einstein condensates (BECs) and consisting of just a cluster of atoms, it has up until now been impossible to measure and control these remarkable forms of matter simultaneously.
A force that intricately links the rotation of the Earth with the direction of weather patterns in the atmosphere has been shown to play a crucial role in the creation of the hypnotic patterns created by the skirts of the Whirling Dervishes.
Mix together air, fuel, and heat and you get combustion, the chemical reaction that powers most engines in planes, trains and automobiles. And if you throw in some ionized gas (plasma), it turns out, you can sustain combustion even in conditions that would otherwise snuff out the reaction: at low air pressure, in high winds or when there's low fuel.
A normally fragile quantum state has been shown to survive at room temperature for a world record 39 minutes, overcoming a key barrier towards building ultrafast quantum computers. In conventional computers data is stored as a string of 1s and 0s. In the experiment, quantum bits of information, 'qubits', were put into a 'superposition' state in which they can be both 1s and 0 at the same time
Replete with letters to budding astronomers, simple to-do lists, scientific notations and journal article drafts, the Library of Congress has received 1,705 boxes of the Seth MacFarlane Collection of the Carl Sagan and Ann Druyan Archive. The collection was dedicated November 12, 2013.
In the quest for fusion energy on earth, researchers use magnetic fields to insulate hot plasma from the walls of the chamber to maintain the reaction and prevent damage to interior surfaces. In the tokamak, a leading contender to achieve a sustained fusion burn, electrical currents flowing in the plasma inside the doughnut-shaped vacuum chamber can become unstable if the plasma current or...
An international team of high-energy physicists says the discovery of an electrically charged subatomic particle called Zc(4020) is a sign that they have begun to unveil a whole new family of four-quark objects. The Beijing Spectrometer (BESIII) collaboration, which includes scientists from the University of Hawaii at Manoa, previously announced the discovery of a mysterious four-quark particle called Zc(3900)
By realising an artificial quantum system, physicists at Heidelberg University have simulated key processes of photosynthesis on a quantum level with high spatial and temporal resolution. In their experiment with Rydberg atoms the team of Prof. Dr. Matthias Weidemüller and Dr. Shannon Whitlock discovered new properties of energy transport. This work is an important step towards answering the...
Using inexpensive materials configured and tuned to capture microwave signals, researchers at Duke University's Pratt School of Engineering have designed a power-harvesting device with efficiency similar to that of modern solar panels. The device wirelessly converts the microwave signal to direct current voltage capable of recharging a cell phone battery or other small electronic device
Space is vast, but it may not be so lonely after all: A study finds the Milky Way is teeming with billions of planets that are about the size of Earth, orbit stars just like our sun, and exist in the Goldilocks zone — not too hot and not too cold for life.
Astronomers have discovered a "weird and freakish object" resembling a rotating lawn sprinkler in the asteroid belt between Mars and Jupiter. The find, reported online in the Nov. 7 issue of the Astrophysical Journal Letters, has left them scratching their heads and searching for an explanation for the strange asteroid's out-of-this-world appearance.
With just a single atom, light can be switched between two fibre optic cables at the Vienna University of Technology. Such a switch enables quantum phenomena to be used for information and communication technology. Fibre optic cables are turned in to a quantum lab
For the past eight years, two French researchers have been bouncing droplets around a vibrating oil bath and observing their unique behaviour. What sounds like a high-school experiment has in fact provided the first ever evidence that the strange features of the quantum world can be reproduced on a macroscopic scale.
Cornell physicists have posited a theory for why scientific theories work – a meta theory. The team has developed a unified computational framework that exposes the hidden hierarchy of scientific theories by quantifying the degree to which predictions — for example, how a particular cellular mechanism might work under certain conditions, or how sound travels through space — depend on the detailed variables of a model.
A radio telescope once used to track ballistic missiles has helped astronomers determine how the magnetic field structure and rotation of the young and rapidly rotating Crab pulsar evolves with time. The findings are published in the journal Science November 1, 2013.
Doom may be averted for the Smith Cloud, a gigantic streamer of hydrogen gas that is on a collision course with the Milky Way Galaxy. Astronomers using the National Science Foundation's Karl G. Jansky Very Large Array (VLA) and Robert C. Byrd Green Bank Telescope (GBT) have discovered a magnetic field deep in the cloud's interior, which may protect it during its meteoric plunge into the disk of...
Kepler-78b is a planet that shouldn't exist. This scorching lava world circles its star every eight and a half hours at a distance of less than one million miles - one of the tightest known orbits. According to current theories of planet formation, it couldn't have formed so close to its star, nor could it have moved there.
Results from the first run of the Large Underground Xenon (LUX) experiment operating a mile underground in the Black Hills of South Dakota, have proven the detector's sensitivity and ruled out some possible candidates for a dark matter particle. Initial results from 85 days worth of accumulated data were announced today, Oct. 30 at a seminar today at the Sanford Underground Research Facility in...
Dramatic advances in the field of quantum dot light emitting diodes (QD-LEDs) could come from recent work by the Nanotechnology and Advanced Spectroscopy team at Los Alamos National Laboratory. Quantum dots are nano-sized semiconductor particles whose emission color can be tuned by simply changing their dimensions.
Whether it is diagnostic imaging, analysis of unknown substances or ultrafast communication – terahertz radiation sources are becoming more and more important. At the Vienna University of Technology, an important breakthrough has been achieved.
Researchers have finally worked out where the noise that makes kettles whistle actually comes from– a problem which has puzzled scientists for more than 100 years.
Theoretical physicist Frank Wilhelm-Mauch and his research team at Saarland University have developed a mathematical model for a type of microscopic test lab that could provide new and deeper insight into the world of quantum particles. The new test system will enable the simultaneous study of one hundred light quanta (photons) and their complex quantum mechanical relationships ("quantum...
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