Posts Tagged ‘magnetic fields’
Astronomers shocked: Neutron star slows down
McGILL U. (CAN) — Neutron stars are known suddenly to begin rotating faster, but researchers say they’ve observed a sudden slowdown in one special kind of neutron star. Continue…
Wednesday, May 29, 2013 16:22 - 3 Comments
Science & Technology - May 23, 2013 12:17 - 0 Comments
‘Dynamo’ accounts for Sun’s weather cycle
U. LEEDS (UK) / U. CHICAGO (US) — Researchers have discovered what drives the generation of astrophysical magnetic fields like the Sun’s. (more…)
Science & Technology - May 16, 2013 12:49 - 0 Comments
Earth’s iron core is not ‘rock solid’
STANFORD (US) — Researchers squeezed iron at pressures as high as 3 million times that felt at sea level to recreate conditions at Earth’s center. The results suggest the core is uneven, grainy, and weak. (more…)
Earth & Environment - Jan 31, 2013 12:12 - 2 Comments
In Alaska, magnets detect permafrost melt
STANFORD (US) — Researchers are using Earth’s magnetic field to determine if the permafrost beneath lakes is thawing as a result of climate change. (more…)
Top Stories - Mar 19, 2012 9:31 - 0 Comments
For designer molecules, trick the electrons
STANFORD (US) — Scientists have created the first-ever system of “designer electrons”—exotic variants of ordinary electrons with tunable properties. (more…)
Top Stories - Feb 16, 2012 13:12 - 1 Comment
Plasma corkscrews offer clues to solar flares
CALTECH (US) — Researchers can better explain solar flares’ dramatic behavior, thanks to microsecond snapshots of plasma jets. (more…)
Health & Medicine - Jan 16, 2012 13:32 - 0 Comments
Magnetic ‘blueprints’ show brain at work
U. WARWICK (UK) — Technology developed for fusion plasma may also allow better noninvasive observation of brain activity. (more…)
Science & Technology - Jul 5, 2011 9:55 - 2 Comments
Tug-of-war gives electrons new spin
U. BUFFALO (US) — At very small scales, it may be possible to create quantum dots that are magnetic, even if their electrons have opposing spins. (more…)
Top Stories - Feb 24, 2011 12:13 - 1 Comment
Solar waves in UK-size magnetic hole
U. SHEFFIELD (UK) — Massive waves in giant magnetic holes on the surface of the Sun have been discovered for the first time. (more…)
Science & Technology - Dec 20, 2010 14:04 - 3 Comments
Sizing up Earth’s super-strong core
UC BERKELEY (US) — The magnetic field inside Earth’s core, 1,800 miles underground, is 50 times stronger than the magnetic field at the surface that makes compass needles align north-south. (more…)
Earth & Environment - Mar 9, 2010 11:09 - 0 Comments
Sun pummeled Earth’s wimpy magnetic field
U. ROCHESTER (US)—The Earth’s magnetic field 3.5 billion years ago was only half as strong as it is today, new research shows. The weakness—coupled with a strong solar wind—likely allowed particles from the young Sun to strip water from early Earth’s atmosphere. (more…)
Science & Technology - Feb 12, 2010 11:38 - 0 Comments
Magnetic tuning may solve data dilemma
U. CHICAGO (US)—A new method for controlling the properties of magnets could be used to improve the storage capacity of next-generation computer hard drives. (more…)
Health & Medicine - Dec 8, 2009 16:46 - 0 Comments
Nanomagnets may speed blood tests
YALE (US)—A team has developed a way to rapidly manipulate and sort different cells in the blood using liquids comprised of magnetic nanoparticles. The advance could dramatically improve the speed and sensitivity of tests used to detect cancer biomarkers, blood disorders, viruses, and other diseases. (more…)
Science & Technology - Nov 18, 2009 16:44 - 0 Comments
Laser’s stellar jet replicates star behavior
U. ROCHESTER (US)—A multi-trillion-watt laser has simulated a stellar jet—an outpouring of matter from a fledgling star—with unprecedented realism. (more…)
Science & Technology - Mar 16, 2009 13:11 - 5 Comments
Cosmic-ray ‘hot spots’ point to mystery source
NYU (US)—Physicists have observed for the first time two distinct “hot spots” that appear to be showering Earth with an excess of cosmic rays. The discovery calls into question nearly a century of understanding about galactic magnetic fields near our solar system, and suggests the possibility that an unknown source or magnetic effect could be responsible. (more…)
