6df Galaxy Survey data, each dot is a galaxy and Earth is at the centre of the sphere. Image: The International Centre for Radio Astronomy Research
A PhD student from The International Centre for Radio Astronomy Research (ICRAR) in Perth has produced one of the most accurate measurements ever made of how fast the Universe is expanding.
A new way to measure the expansion of the universeA PhD student from The International Centre for Radio Astronomy Research (ICRAR) in Perth has produced one of the most accurate measurements ever made of how fast the Universe is expanding.
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(PhysOrg.com) -- An archaeologist at the University of Bristol believes he may have discovered Britain's oldest example of rock art.
(PhysOrg.com) -- Penn researchers have helped develop a nanotech device that combines carbon nanotubes with olfactory receptor proteins, the cell components in the nose that detect odors.
Scientists seeking to improve cancer treatments have created a tiny drug transporter that maximizes its ability to silence damaging genes by finding the equivalent of an expressway into a target cell.
(PhysOrg.com) -- Taking advantage of the unique properties of zinc oxide nanowires, researchers have demonstrated a new type of piezoelectric resistive switching device in which the write-read access of memory cells is controlled by electromechanical modulation. Operating on flexible substrates, arrays of these devices could provide a new way to interface the mechanical actions of the biological world to conventional electronic circuitry.
Birmingham particle physicists are today trawling through the data from particle collisions at the Large Hadron Collider that could indicate the existence of the Higgs boson.
While many hotel rooms, recording studios, and even some homes are built with materials to help absorb or reflect sound, mechanisms to truly control the direction of sound waves are still in their infancy. However, researchers at the California Institute of Technology (Caltech) have now created the first tunable acoustic diode-a device that allows acoustic information to travel only in one direction, at controllable frequencies.
(PhysOrg.com) -- When a spinning laser gyroscope is placed near a super-cooled rotating ring, the gyroscope accelerates a bit in the same direction as the ring, and scientists aren’t sure why. The anomalous acceleration was discovered in 2007 by Martin Tajmar at the Space Propulsion group at the Austrian Institute of Technology in Seibersdorf, Austria. So far, the effect has only been observed in this one laboratory. Since then, scientists have been looking for an explanation for the so-called Tajmar effect.
(PhysOrg.com) -- When it comes to the rules of the quantum world, it seems that almost everything goes against intuition. In the case of the way ignorance of the whole implies ignorance of at least one of its parts, the situation seems to be counterintuitive. "When viewed in a classical sense, you would be inclined to think that a strong ignorance of the whole has to be accompanied by significant ignorance of at least one of its parts," Stephanie Wehner tells PhysOrg.com. "However, this conjecture turns out to be false in quantum theory."
July 21, 2011: Space shuttle Atlantis landed at NASA's Kennedy Space Center, wrapping up the final mission of NASA's space shuttle program.
(PhysOrg.com) -- CSIRO scientists are investigating the potentially damaging effects climate change will have on Australia’s agricultural crops and native plants as carbon dioxide concentrations, temperatures and rainfall patterns change.
Nine engineers from Sandia National Laboratories helped ensure Atlantis' safety from Mission Control at Johnson Space Center as the shuttle made its final flight, marking the end of NASA's 30-year space shuttle program. For the past 22 missions — every one since NASA's 2005 return to space — Sandia Labs' engineers have worked tirelessly to protect the astronauts with ingenious, space-based inspections of the orbiter's thermal protection system.
An unidentified flying object photographed high in the Belgian sky that puzzled even NASA scientists turns out to have been a fake made out of foam, the man behind the hoax said Tuesday.
A Chinese submersible conducted the country's deepest manned dive Tuesday in the latest technological milestone for China, which theoretically puts most of the ocean floor's vast resources within its reach.
(PhysOrg.com) -- In a partnership between amateur and professional astronomers, the recent discovery of a dying star’s last gasps could help resolve a decades-old debate among astronomers. That is, are stellar companions key to the formation and structure of planetary nebulae?
The asteroid 1999 RQ36 may not be a household name, but astronomers predict that in less than 200 years, it may make an unforgettable impact. According to radar and optical observations, the space rock, measuring some five football fields in diameter, has a 1 in 1,000 chance of crashing into Earth in the year 2182.
Decisions by farmers to plant on productive land with little snow enhances the potential for reforestation to counteract global warming, concludes new research from Carnegie's Julia Pongratz and Ken Caldeira. Previous research has led scientists and politicians to believe that regrowing forests on Northern lands that were cleared in order to grow crops would not decrease global warming. But these studies did not consider the importance of the choices made by farmers in the historical past. The work, with colleagues from the Max Planck Institute for Meteorology and the University of Hamburg, will be published August 2 by Geophysical Research Letters.
(PhysOrg.com) -- ESA's Herschel space observatory has shown that water expelled from the moon Enceladus forms a giant torus of water vapour around Saturn. The discovery solves a 14-year mystery by identifying the source of the water in Saturn’s upper atmosphere.
(PhysOrg.com) -- Researchers Zhili Feng, Alan Frederic and Stan David in Oak Ridge National Laboratory's Materials S&T Division have made significant progress toward a new metal processing technique, called friction-stir extrusion, that could represent a major advance in converting recyclable materials -- such as alloys of aluminum, magnesium and titanium alloys, and even high-temperature superconductors -- to useful products.
(PhysOrg.com) -- How does one prove that the protein isolated from a 68-million-year-old dinosaur bone is not a contamination from the intervening millenia or from the lab?
(PhysOrg.com) -- In order for enzymes and other proteins in our bodies to work correctly, it is often necessary for multiple protein units to gather together into a larger structure. Chains of sugar molecules cannot do this—at least that is what was thought until now. A team led by Thomas Heinze at the University of Jena (Germany) and Stephen E. Harding at the University of Nottingham (UK) has now proven the opposite.
Taking their cue from biological circulatory systems, University of Illinois researchers have developed vascularized structural composites, creating materials that are lightweight and strong with potential for self-healing, self-cooling, metamaterials and more.
UBC researchers have invented a silicone chip that could make genetic analysis far more sensitive, rapid, and cost-effective by allowing individual cells to fall into place like balls in a pinball machine.
(PhysOrg.com) -- Flow cytometry, a technique for counting and examining cells, bacteria and other microscopic particles, is used routinely in diagnosing disorders, infections and cancers and evaluating the progression of HIV and AIDS. But flow cytometers are big, bulky contraptions that cost tens of thousands of dollars, making them less than ideal for health care in the field or other settings where resources are limited.
