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) |
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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 ...
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Rare earths are vital, and China owns them all
Space & Earth / Earth Sciences
Sep 28, 2009 |
4.1 / 5 (11) |
8
Rare earths may not be on most investors' radars, but they are certainly in almost any high-tech item they use -- and in the world of rare earths, China is king.
Animal magnetism provides a sense of direction
Biology /
Feb 27, 2008 |
4 / 5 (11) |
0
They may not be on most people’s list of most attractive species, but bats definitely have animal magnetism. Researchers from the Universities of Leeds and Princeton have discovered that bats use a magnetic substance in their ...
Europium discovery: New element found to be a superconductor
May 13, 2009 |
3.5 / 5 (17) |
2
(PhysOrg.com) -- Of the 92 naturally occurring elements, add another to the list of those that are superconductors. James S. Schilling, Ph.D., professor of physics in Arts & Sciences at Washington University ...
32 New Exoplanets Found (w/ Video)
Oct 19, 2009 |
4.9 / 5 (27) |
6
(PhysOrg.com) -- Today, at an international ESO/CAUP exoplanet conference in Porto, the team who built the High Accuracy Radial Velocity Planet Searcher, better known as HARPS, the spectrograph for ESO's 3.6-metre ...
Birds 'See' Earth's Magnetic Field
Nov 16, 2009 |
4.4 / 5 (7) |
2
When birds migrate over long distances -- sometimes thousands of miles -- they usually end up in exactly the same place year after year. Such accurate feats of navigation, accomplished by millions of birds ...
Magnetic Resonance Now Also Comes In Tiny Quantities
Sep 29, 2009 |
5 / 5 (6) |
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(PhysOrg.com) -- It is now possible to analyse very small samples using Nuclear Magnetic Resonance. Thanks to a specially constructed detector, a 'stripline', greater sensitivity can be achieved while maintaining the same ...
Polar Crown Prominences
Sep 18, 2008 |
4.8 / 5 (17) |
2
Warning: Material contained in this story may make you wish to become a solar physicist. Japan's Hinode spacecraft, launched in 2006 on a mission to study the sun, is beaming back movies that astonish even ...
Multiferroic compounds used to produce smaller and cheaper digital memories
Nov 27, 2009 |
4.7 / 5 (3) |
1
(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 ...
Mankind using Earth's resources at alarming rate
Nov 24, 2009 |
3.3 / 5 (19) |
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Humanity would need five Earths to produce the resources needed if everyone lived as profligately as Americans, according to a report issued Tuesday.
The discovery of new Earths is imminent, UD astronomer says
Sep 28, 2009 |
4 / 5 (16) |
4
(PhysOrg.com) -- Harry Shipman, Annie Jump Cannon Professor of Physics and Astronomy at the University of Delaware, told the audience for his lecture, “Seeking New Planets,” on Saturday evening, Sept. 26, ...
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