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News tagged with field

Peeking at peak oil: Will consumers face oil rationing within a decade?

What happens when a handful of the world's largest oil fields— accounting for two-thirds of the world's oil—run dry? What are the implications of such a prospect for food production, economic growth and ultimately, ...

Space & Earth / Earth Sciences

created 18 hours ago | popularity 4.1 / 5 (8) | comments 28

Ghostly gamma-ray beams blast from Milky Way's center

(Phys.org) -- As galaxies go, our Milky Way is pretty quiet. Active galaxies have cores that glow brightly, powered by supermassive black holes swallowing material, and often spit twin jets in opposite directions. ...

Space & Earth / Astronomy

created May 29, 2012 | popularity 4.3 / 5 (10) | comments 13 | with audio podcast

Building 45 payloads for balloon mission

Robyn Millan's lab is a little crowded at the moment. It overflows with electronics. And foam. And parachutes and aluminum frames and drills. Based at Dartmouth College in Hanover, NH, Millan and her students ...

Space & Earth / Space Exploration

created 22 hours ago | popularity not rated yet | comments 0

NASA lunar spacecraft GRAIL complete prime mission ahead of schedule

(Phys.org) -- A NASA mission to study the moon from crust to core has completed its prime mission earlier than expected. The team of NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission, with twin ...

Space & Earth / Space Exploration

created May 29, 2012 | popularity 5 / 5 (3) | comments 0

CryoSat goes to sea

CryoSat was launched in 2010 to measure sea-ice thickness in the Arctic, but data from the Earth-observing satellite have also been exploited for other studies. High-resolution mapping of the topography of the ocean floor ...

Space & Earth / Earth Sciences

created May 29, 2012 | popularity 5 / 5 (3) | comments 0

An unlikely route to ferroelectricity

(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain ...

Physics / Condensed Matter

created May 18, 2012 | popularity 4.3 / 5 (4) | comments 7 | with audio podcast

Study reveals trade patterns for crucial substance played key role in Maya collapse

Shifts in exchange patterns provide a new perspective on the fall of inland Maya centers in Mesoamerica approximately 1,000 years ago. This major historical process, sometimes referred to as the "Maya collapse" has puzzled ...

Other Sciences / Archaeology & Fossils

created May 23, 2012 | popularity 3.9 / 5 (8) | comments 0 | with audio podcast

A new way to discover pulsars

(Phys.org) -- The Large Area Telescope (LAT), built by SLAC for the Fermi Gamma-ray Space Telescope, collects information on high-energy gamma rays from numerous sources in the sky. Among these are small, ...

Space & Earth / Astronomy

created May 22, 2012 | popularity 5 / 5 (6) | comments 1 | with audio podcast

A magnetic approach to lattices

(Phys.org) -- JQI experimentalists under the direction of Ian Spielman are in the business of using lasers to create novel environments for neutral atoms. For instance, this research group previously enticed ...

Physics / General Physics

created May 22, 2012 | popularity 5 / 5 (4) | comments 0 | with audio podcast

French team demonstrates paramagnetic properties of liquid oxygen drops

(Phys.org) -- A team of French scientists studying the properties of Leidenfrost drops has found that liquid oxygen drops can be manipulated and controlled using a magnetic field at room temperature. They describe their work ...

Physics / General Physics

created May 21, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast report

Researchers engineer molecular magnets to act as long-lived qubits

(PhysOrg.com) -- Some physicists today are investigating the possibility of using molecular magnets as information storage units in future quantum computers. Molecular magnets are molecules whose magnetic ...

Physics / General Physics

created Mar 21, 2012 | popularity 4.8 / 5 (14) | comments 0 | with audio podcast feature

Particles magnetically 'click' to form superstructures

(Phys.org) -- Geomag, the popular children's toy, contains small metal spheres that can be magnetically connected with a click to build a variety of towers, bridges, and sculptures. In a new study, scientists ...

Chemistry / Materials Science

created Apr 10, 2012 | popularity 4.9 / 5 (8) | comments 1 | with audio podcast feature

300,000 times the strength of the Earth's magnetic field: BLADE's new 14 Tesla magnet

The first researchers to use the new high-field superconducting magnet at Diamond Light Source, the UK’s national synchrotron facility, are searching for “hidden magnetic states”. If found, ...

Physics / General Physics

created May 17, 2012 | popularity 4.3 / 5 (19) | comments 4

A deeper look at Centaurus A

(Phys.org) -- The strange galaxy Centaurus A is pictured in a new image from the European Southern Observatory. With a total exposure time of more than 50 hours this is probably the deepest view of this peculiar ...

Space & Earth / Astronomy

created May 16, 2012 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Deterring signals: Tobacco plants advertise their defensive readiness to attacking leafhoppers

Following herbivory, plants produce jasmonic acid, a hormone which activates several plant defense reactions. Scientists found that leafhoppers can evaluate whether tobacco plants are ready for defense when attacked. If jasmonate-signaling ...

Biology / Biotechnology

created May 23, 2012 | popularity 5 / 5 (1) | comments 0