News tagged with earths magnetic
The Earth's magnetic field remains a charged mystery
Space & Earth / Earth Sciences
Jun 15, 2009 |
4.7 / 5 (26) |
20
400 years of discussion and we’re still not sure what creates the Earth’s magnetic field, and thus the magnetosphere, despite the importance of the latter as the only buffer between us and deadly solar wind ...
Reversals of Earth's Magnetic Field Explained by Small Core Fluctuations
Apr 23, 2009 |
4.7 / 5 (41) |
25
(PhysOrg.com) -- Based on studies of old volcanic basalt, scientists know that the Earth’s magnetic field reverses at irregular intervals, ranging from tens of thousands to millions of years. Volcanic basalt ...
Sun Often 'Tears Out A Wall' In Earth's Solar Storm Shield
Space & Earth / Earth Sciences
Dec 16, 2008 |
4.5 / 5 (20) |
6
(PhysOrg.com) -- Earth's magnetic field, which shields our planet from particles streaming outward from the Sun, often develops two holes that allow the largest leaks, according to researchers sponsored by ...
Cluster watches Earth's leaky atmosphere
Space & Earth / Earth Sciences
Aug 28, 2008 |
4.3 / 5 (19) |
8
Oxygen is constantly leaking out of Earth’s atmosphere and into space. Now, ESA’s formation-flying quartet of satellites, Cluster, has discovered the physical mechanism that is driving the escape. It turns ...
Search results for earths magnetic
Multiferroic compounds used to produce smaller and cheaper digital memories
10 hours ago |
4.7 / 5 (3) |
0
(PhysOrg.com) -- Is it possible to make even more compact digital memories for portable electronic devices and which consume even less energy? A team of French researchers has recently demonstrated that it ...
Spin polarization achieved in room temperature silicon
15 hours ago |
4.8 / 5 (11) |
0
(PhysOrg.com) -- A group in The Netherlands has achieved a first: injection of spin-polarized electrons in silicon at room temperature. This has previously been observed only at extremely low temperatures, ...
Superconductor magnet spacecraft heat shield being developed
Nov 26, 2009 |
5 / 5 (22) |
22
(PhysOrg.com) -- European space agencies and an aerospace giant are developing a new re-entry heat shield that will use superconductor magnets to generate a magnetic field strong enough to deflect the superhot ...
Monster Waves on the Sun are Real (w/ Video)
Nov 25, 2009 |
4.9 / 5 (16) |
2
Sometimes you really can believe your eyes. That's what NASA's STEREO (Solar Terrestrial Relations Observatory) spacecraft are telling researchers about a controversial phenomenon on the sun known as the "solar ...
Explained: The Discrete Fourier Transform
Nov 25, 2009 |
4.1 / 5 (27) |
8
(PhysOrg.com) -- In 1811, Joseph Fourier, the 43-year-old prefect of the French district of Isčre, entered a competition in heat research sponsored by the French Academy of Sciences. The paper he submitted ...
fMRI scans used in murder trial sentencing
Nov 25, 2009 |
1 / 5 (1) |
4
(PhysOrg.com) -- Functional Magnetic Resonance Imaging (fMRI) scans have been used, possibly for the first time, in the sentencing phase of a murder trial in Chicago in the US.
Most radiation oncologists utilize advanced medical imaging techniques, study suggests
Nov 25, 2009 |
not rated yet |
0
A recent study shows that 95 percent of radiation oncologists use advanced imaging techniques such as positron emission tomography (FDG-PET), magnetic resonance imaging (MRI), and 4-dimensional computed tomography (4DCT) ...
Cassini Captures Ghostly Dance of Saturn's Northern Lights (w/ Video)
Space & Earth / Space Exploration
Nov 24, 2009 |
4.9 / 5 (9) |
1
(PhysOrg.com) -- In the first video showing the auroras above the northern latitudes of Saturn, Cassini has spotted the tallest known "northern lights" in the solar system, flickering in shape and brightness ...
First black holes may have incubated in giant, starlike cocoons
Nov 24, 2009 |
4.3 / 5 (15) |
19
(PhysOrg.com) -- The first large black holes in the universe likely formed and grew deep inside gigantic, starlike cocoons that smothered their powerful x-ray radiation and prevented surrounding gases from ...
Mankind using Earth's resources at alarming rate
Nov 24, 2009 |
3.1 / 5 (15) |
40
Humanity would need five Earths to produce the resources needed if everyone lived as profligately as Americans, according to a report issued Tuesday.
List of search results for earths magnetic
