News tagged with dynamo theory
Dynamo theory: How small planets can have self-sustaining magnetic fields
The Earth's global magnetic field is generated in its metallic core, located nearly 3,000 kilometers beneath the planet’s surface. The field has existed on Earth for at least 3.5 billion years and offers clues ...
Space & Earth / Space Exploration
Mar 25, 2010 |
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Search results for dynamo theory
A close-up view of Mercury: Researchers find the planet may have had a dynamic past
New observations from a spacecraft orbiting Mercury have revealed that the tiny, pockmarked planet harbors a highly unusual interior — and the craft’s glimpse of Mercury’s surface topography ...
Space & Earth / Space Exploration
Mar 22, 2012 |
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What drove the lunar dynamo? Moon's molten core was likely sustained by alternative power source
New evidence from an ancient lunar rock suggests that the moon once harbored a long-lived dynamo — a molten, convecting core of liquid metal that generated a strong magnetic field 3.7 billion years ago. ...
Space & Earth / Space Exploration
Jan 27, 2012 |
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New all-sky map shows the magnetic fields of the Milky Way with the highest precision
(PhysOrg.com) -- With a unique new all-sky map, scientists at MPA have made significant progress toward measuring the magnetic field structure of the Milky Way in unprecedented detail. Specifically, the map ...
Dec 06, 2011 |
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Ancient lunar dynamo may explain magnetized moon rocks
The presence of magnetized rocks on the surface of the moon, which has no global magnetic field, has been a mystery since the days of the Apollo program. Now a team of scientists has proposed a novel mechanism ...
Space & Earth / Space Exploration
Nov 09, 2011 |
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MESSENGER results after six months in orbit
(PhysOrg.com) -- MESSENGER scientists will highlight the latest results on Mercury from MESSENGER observations obtained during the first six months (the first Mercury solar day) in orbit. These findings will ...
Space & Earth / Space Exploration
Oct 05, 2011 |
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Messenger orbital data confirm theories, reveal surprises
On March 18, 2011, the MESSENGER spacecraft entered orbit around Mercury to become that planet's first orbiter. The spacecraft's instruments are making a complete reconnaissance of the planet's geochemistry, ...
Space & Earth / Space Exploration
Jun 16, 2011 |
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Earth's inner core is melting... and freezing
The inner core of the Earth is simultaneously melting and freezing due to circulation of heat in the overlying rocky mantle, according to new research from the University of Leeds, UC San Diego and the Indian ...
Space & Earth / Earth Sciences
May 18, 2011 |
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Could the combination of general relativity and quantum mechanics lead to spintronics?
(PhysOrg.com) -- In the early 20th century, two famous discoveries about spin were made. One of them, discovered by Albert Einstein and Wander Johannes de Haas, explains a relationship between the spin of elementary particles. ...
Mar 03, 2011 |
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Coaxing new hair: Scientists work on perking up dormant follicles
When a man's hair stops growing back, it would be logical to assume his scalp has suffered a loss of stem cells, those versatile dynamos that have the ability to regenerate hair, blood, and other parts of the body.
Medicine & Health / Medical research
Jan 14, 2011 |
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A New class for Tau Scorpii
Many classes of stars are named for an early, distinguished member of a certain type of stars. For example, Cepheid variables take their namesake from the periodic variable Delta Cephei, first recognized by ...
Dec 22, 2010 |
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List of search results for dynamo theory
