News tagged with magnetic mineral
Tracking a Jurassic reversal of the Earth's magnetic field
Roughly 180 million years ago, during the height of the Jurassic period, the Earth's magnetic field flipped, bringing the magnetic north pole once again into the Northern Hemisphere.
Space & Earth / Earth Sciences
May 17, 2012 |
4.5 / 5 (2) |
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'Ferropaper' is new technology for small motors, robots
(PhysOrg.com) -- Researchers at Purdue University have created a magnetic "ferropaper" that might be used to make low-cost "micromotors" for surgical instruments, tiny tweezers to study cells and miniature ...
Nanotechnology / Nanomaterials
Jan 05, 2010 |
3.9 / 5 (12) |
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Hand axes in Europe nearly a million years old: study
Early humans used two-sided stone axes in Europe up to 900,000 years ago, far earlier than previously thought, according to a study released Wednesday.
Other Sciences / Archaeology & Fossils
Sep 02, 2009 |
4 / 5 (7) |
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Magnetic microbe genome attracting attention for biotech research
The smallest organisms to use a biological compass are magnetotactic bacteria, however mysteries remain about exactly how these bacteria create their cellular magnets. In a study published online in Genome Re ...
Aug 11, 2009 |
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Search results for magnetic mineral
Meteorite hunt goes on, needs public's help
(Phys.org) -- A University of California, Davis, geologist is appealing for public help in tracking down pieces of the meteorite that blew up over El Dorado County on April 22.
Space & Earth / Space Exploration
May 28, 2012 |
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Plump up the clay: Carbon dioxide moves into and expands a common mineral in carbon sequestration caprocks
(Phys.org) -- For the first time, scientists have direct evidence that high-pressure carbon dioxide or CO2 migrates into the clay montmorillonite causing it to expand, according to scientists at Pacific Northwest ...
May 18, 2012 |
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Hitachi unveils motor without 'rare earths'
Japanese high-tech firm Hitachi Wednesday unveiled an electric motor that does not use "rare earths", aiming to cut costs and reduce dependence on imports of the scarce minerals from China.
Apr 11, 2012 |
3.8 / 5 (25) |
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Oceans apart: New research suggests that ocean-crust formation is a dynamic process
Three-fifths of Earth’s crust lies underwater, spread out along the seafloor. More than four cubic miles of ocean crust forms each year, constantly regenerating like new skin across the globe. This ocean ...
Space & Earth / Earth Sciences
Apr 10, 2012 |
5 / 5 (1) |
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Modeling extreme space weather
Explosions on the sun regularly disrupt the magnetic envelope surrounding Earth, but that envelope, the magnetosphere, largely protects the surface of the planet itself from space weather – with one exception. As a rule, ...
Space & Earth / Space Exploration
Mar 23, 2012 |
3 / 5 (2) |
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WTO chief plays down China rare earth row
The head of the World Trade Organization on Friday played down a dispute over China's controls on exports of rare earth minerals, saying it was unlikely to escalate into a trade war.
Mar 16, 2012 |
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Prolonged space travel causes brain and eye abnormalities in astronauts
Magnetic resonance imaging (MRI) of the eyes and brains of 27 astronauts who have spent prolonged periods of time in space revealed optical abnormalities similar to those that can occur in intracranial hypertension of unknown ...
Space & Earth / Space Exploration
Mar 13, 2012 |
4.3 / 5 (6) |
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Scientists shed light on magnetic mystery of graphite
The physical property of magnetism has historically been associated with metals such as iron, nickel and cobalt; however, graphite – an organic mineral made up of stacks of individual carbon sheets – has baffled ...
Jan 26, 2012 |
4.6 / 5 (7) |
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Berkeley Lab seeks to help US assert scientific leadership in critical materials
A few short decades ago, few could have imagined that the world would be seriously concerned over something called dysprosium. Also known as number 66 on the periodic table, dysprosium was once just another element for chemistry ...
Jan 11, 2012 |
3 / 5 (2) |
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New bug eats sulfates, makes two kinds of magnet
(PhysOrg.com) -- A bacterium recently discovered near Death Valley has some very unusual properties according to a report published in the December 23 issue of Science magazine. While some ‘bugs’ are li ...
Dec 23, 2011 |
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List of search results for magnetic mineral
