California smartphone 'kill switch' bill advances
On a second attempt, California lawmakers have advanced a bill that would require electronics manufacturers to install a shut-off function in all smartphones as a way to deter what one senator called a crime wave of thefts.
Solution to two long-standing mysteries of cuprate superconductivity found
Scientists seeking to understand the intricacies of high-temperature superconductivity—the ability of certain materials to carry electrical current with no energy loss—have been particularly puzzled by ...
Researchers build acoustic tractor beam
Federal report: Warming disrupts Americans' lives (Update 2)
Most Americans are already feeling man-made global warming, from heat waves to wild storms to longer allergy seasons. And it is likely to get worse and more expensive, says a new federal report that is heating ...
Astronomers harness the galaxy's biggest telescope to make most precise measurement of spinning star
(Phys.org) —An international team of astronomers has made a measurement of a distant neutron star that is one million times more precise than the previous world's best.
California needs Mexico's seismic warning system
This Good Friday started off as a lush, beautiful morning in Mexican's beach resort town of Acapulco. Thousands of tourists, mainly Mexicans, had gathered there to celebrate the Easter weekend, an important ...
Final US climate report will present dire picture (Update)
The Obama administration is more certain than ever that global warming is changing Americans' daily lives and will worsen—conclusions that scientists will detail in a massive federal report to be released ...
Team uses unused iPhone energy for case lights
Optical traps on chip manipulate many molecules at once
(Phys.org) —Optical trapping, a technique for studying single molecules, is traditionally delicate, requiring special equipment and a soundproof room, with data collected one molecule at a time.
Newly identified 'universal' property of metamagnets may lead to everyday uses
(Phys.org) —A new physics discovery made by a University of Virginia-led team may lead to more efficient refrigerators, heat pumps and airport scanners, among many possible uses –perhaps within a decade.
Putting iron to the stress test
(Phys.org) —Using an ultrafast laser system, a group in Physical and Life Sciences at Lawrence Livermore National Laboratory have subjected iron to extremely rapid dynamic compression and have shown that ...
The changing colours of the universe
We know we live in an expanding universe but it's also changing colour and has been doing so for billions of years.
A new twist in the properties of light
Light has some well-established dynamical properties that have defined our understanding of electromagnetic radiation for over a century. Two of the most fundamental of these properties are that photons of ...
How do liquid foams block sound?
Liquid foams have a remarkable property: they completely block the transmission of sound over a wide range of frequencies. CNRS physicists working in collaboration with teams from Paris Diderot and Rennes ...