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Keyword: poleshift

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  • Earth's Inner Fort Knox [Earth's core has 1.6 quadrillion tons of gold]

    12/13/2006 10:58:55 PM PST · by grundle · 56 replies · 1,851+ views
    Discover magazine ^ | September 2006 | Anne Wootton
    Searching for a pot of gold? Try the center of the Earth. More than 99 percent of Earth's gold is missing—it all sank to the center of the planet billions of years ago. In fact, says geologist Bernard Wood of Macquarie University in Australia, there's enough gold in Earth's core to coat its surface in 1.5 feet of the stuff. How did it get there? Earth formed from a series of smaller planetesimals that crashed together over the course of 30 million to 40 million years. Wood deduced how much gold ought to be present in Earth's crust by comparing...
  • The Sun: A Great Ball of Iron?

    07/17/2002 11:33:32 PM PDT · by per loin · 66 replies · 680+ views
    Science Daily
    Source:   University Of Missouri-Rolla (http://www.umr.edu) Date:   Posted 7/17/2002 The Sun: A Great Ball Of Iron? For years, scientists have assumed that the sun is an enormous mass of hydrogen. But in a paper presented before the American Astronomical Society, Dr. Oliver Manuel, a professor of nuclear chemistry at UMR, says iron, not hydrogen, is the sun's most abundant element. Manuel claims that hydrogen fusion creates some of the sun's heat, as hydrogen -- the lightest of all elements -- moves to the sun's surface. But most of the heat comes from the core of an exploded supernova...
  • Primordial Nukes (Prehistoric Nukes Found)

    03/14/2005 5:37:24 PM PST · by blam · 17 replies · 1,548+ views
    Science News Magazine ^ | 3-14-2005 | Peter Weiss
    Primordial NukesThe 2-billion-year-old tale of Earth's natural nuclear reactors Peter Weiss For more than a decade, Alexander P. Meshik has kept close tabs on a fleck of black rock no larger than an infant's fingernail. It's so unassuming that most people would sweep it into a dustpan without a second thought. Yet to Meshik, a nuclear physicist originally from Russia, this little scrap of mineral is a scientific gem. E. Roell The fleck, with its clues to believe-it-or-not geophysical events, emerged from the bowels of Earth decades ago. It was unearthed in the early 1970s at the Oklo uranium mine...
  • Will Compasses Point South?

    07/13/2004 7:25:26 AM PDT · by Servant of the 9 · 92 replies · 1,714+ views
    New York Times ^ | July 13, 2004 | WILLIAM J. BROAD
    The collapse of the Earth's magnetic field, which both guards the planet and guides many of its creatures, appears to have started in earnest about 150 years ago. The field's strength has waned 10 to 15 percent, and the deterioration has accelerated of late, increasing debate over whether it portends a reversal of the lines of magnetic force that normally envelop the Earth. During a reversal, the main field weakens, almost vanishes, then reappears with opposite polarity. Afterward, compass needles that normally point north would point south, and during the thousands of years of transition, much in the heavens and...
  • Earthquakes and Tsunamis are triggered by Star-quakes

    03/06/2005 11:09:03 PM PST · by bd476 · 131 replies · 1,924+ views
    India Daily News ^ | March 7, 2005
    Earthquakes and Tsunamis are triggered by Star-quakes – the invisible interconnection between different parts of the Universe The position of SGR1806-20 in a radio image of the sky - 50,000 light-years away Staff Reporter Mar. 7, 2005 Computer models are showing an interesting relationship between star-quakes and earthquakes. Supernova, star-quakes and similar burst of energy in the Universe triggers earthquakes and tsunamis. According to researchers, most of the large earthquakes and Tsunamis happened when there was a burst of energy somewhere in the cosmos. According to BBC, Astronomers say they have been stunned by the amount of energy released in...
  • The earth's magnetic field impacts climate: Danish study

    01/12/2009 6:33:01 PM PST · by NormsRevenge · 70 replies · 3,275+ views
    AFP on Yahoo ^ | 1/12/09 | AFP
    COPENHAGEN (AFP) – The earth's climate has been significantly affected by the planet's magnetic field, according to a Danish study published Monday that could challenge the notion that human emissions are responsible for global warming. "Our results show a strong correlation between the strength of the earth's magnetic field and the amount of precipitation in the tropics," one of the two Danish geophysicists behind the study, Mads Faurschou Knudsen of the geology department at Aarhus University in western Denmark, told the Videnskab journal. He and his colleague Peter Riisager, of the Geological Survey of Denmark and Greenland (GEUS), compared a...
  • The earth's magnetic field impacts climate: Danish study

    01/15/2009 9:01:24 AM PST · by TaraP · 7 replies · 351+ views
    Terra Daily. ^ | Jan 12th, 2009
    The earth's climate has been significantly affected by the planet's magnetic field, according to a Danish study published Monday that could challenge the notion that human emissions are responsible for global warming. "Our results show a strong correlation between the strength of the earth's magnetic field and the amount of precipitation in the tropics," one of the two Danish geophysicists behind the study, Mads Faurschou Knudsen of the geology department at Aarhus University in western Denmark, told the Videnskab journal. He and his colleague Peter Riisager, of the Geological Survey of Denmark and Greenland (GEUS), compared a reconstruction of the...
  • Earth's magnetic field 'boosts gravity'

    09/23/2002 11:11:32 AM PDT · by VadeRetro · 134 replies · 1,680+ views
    New Scientist ^ | 09:20 22 September 02 | Michael Brooks
    Exclusive from New Scientist Hidden extra dimensions are causing measurements of the strength of gravity at different locations on Earth to be affected by the planet's magnetic field, French researchers say. This is a controversial claim because no one has ever provided experimental evidence to support either the existence of extra dimensions or any interaction between gravity and electromagnetism. But lab measurements of Newton's gravitational constant G suggest that both are real. Newton's constant, which describes the strength of the gravitational pull that bodies exert on each other, is the most poorly determined of the constants of nature. The two...
  • Magnetic effects seen in water

    12/07/2004 2:12:48 PM PST · by rotstan · 13 replies · 724+ views
    Physics Web News ^ | 12/6/04 | Staff
    Physicists in Japan have discovered that the melting point of water increases slightly in a strong magnetic field. Hideaki Inaba and colleagues at Chiba University found that it increases by 5.6 millikelvin for ordinary water in a field of 6 Tesla, and by 21.8 millikelvin for heavy water (J. Appl. Phys. 96 6127). Water has many unusual properties: it has relatively high melting and boiling points for a small molecule, and the liquid state can also be denser than the solid state. These properties are thought to arise from the 3D network of hydrogen bonds in the molecule. Recently, it...
  • Magnetic Stars

    10/15/2004 8:29:46 AM PDT · by ckilmer · 8 replies · 525+ views
    eurekalert/Nature/Max-Planck-Gesellschaft ^ | October 14th, 2004 | J. Braithwaite and H.C. Spruit
    Magnetic Stars The puzzle of `magnetic stars' solved by astrophysicists of the Max Planck Society How does one explain the enormous magnetic field strengths of the so-called `magnetic stars'? This question concerning magnetic fields in the cosmos, first posed half a century ago, has now been answered by scientists of the Max Planck Institute for Astrophysics in Garching. With 3-dimensional numerical simulations they have found the magnetic field configurations that underly the strong magnetic fields observed on the surface of the so-called magnetic A-stars and magnetic White Dwarfs, and how these fields can survive for the life time of these...
  • Biggest stars produce strongest magnets

    01/30/2005 1:17:24 PM PST · by Willie Green · 14 replies · 1,000+ views
    SpaceFlightNow ^ | January 28, 2005 | HARVARD-SMITHSONIAN CENTER FOR ASTROPHYSICS
    For education and discussion only. Not for commercial use. Astronomy is a science of extremes - the biggest, the hottest, and the most massive. Today, astrophysicist Bryan Gaensler (Harvard-Smithsonian Center for Astrophysics) and colleagues announced that they have linked two of astronomy's extremes, showing that some of the biggest stars in the cosmos become the strongest magnets when they die. "The source of these very powerful magnetic objects has been a mystery since the first one was discovered in 1998. Now, we think we have solved that mystery," says Gaensler. The astronomers base their conclusions on data taken with CSIRO's...
  • Oceans charge up new theory of magnetism

    06/16/2009 9:29:47 AM PDT · by BGHater · 32 replies · 568+ views
    Times Online ^ | 14 June 2009 | Jonathan Leake
    A radical new idea may revolutionise our understanding of one of the most vital forces on Earth Earth's magnetic field, long thought to be generated by molten metals swirling around its core, may instead be produced by ocean currents, according to controversial new research published this week. It suggests that the movements of such volumes of salt water around the world have been seriously underestimated by scientists as a source of magnetism. If proven, the research would revolutionise geophysics, the study of the Earth’s physical properties and behaviour, in which the idea that magnetism originates in a molten core is...
  • Study Peels Back More of the Magnetic Sun

    03/12/2010 11:45:54 PM PST · by neverdem · 12 replies · 730+ views
    ScienceNOW ^ | March 12, 2010 | Phil Berardelli
    Enlarge Image Turmoil. Magnetism produces much of the sun's surface phenomena, such as these sunspots, seen in ultraviolet light. Credit: NASA/TRACE Researchers have discovered that one of the mysterious forces that sweep the sun's surface shows an unexpectedly strong connection with the number of sunspots, magnetic disturbances that can affect Earth's weather and telecommunications. The findings should improve predictions of the sun's dynamics and might even help scientists develop better climate models. Along with heat and light, the sun emits x-rays and magnetically charged particles that can endanger astronauts, fry circuits aboard satellites orbiting Earth, and overload electric power...
  • Ain’t Misbehavin’ – Turbulence, Solar Flares and Magnetism

    05/22/2013 7:11:22 PM PDT · by BenLurkin · 9 replies
    UniverseToday ^ | May 22, 2013 | by Tammy Plotner on
    What’s more fun than something that misbehaves? When it comes to solar dynamics, we know a lot, but there are many things we don’t yet understand. For example, when a particle filled solar flare lashes out from the Sun, its magnetic field lines can do some pretty unexpected things – like split apart and then rapidly reconnect. According to the flux-freezing theorem, these magnetic lines should simply “flow away in lock-step” with the particles. They should stay intact, but they don’t. It’s not just a simple rule they break… it’s a law of physics.
  • Anomalies hint at magnetic pole flip

    04/10/2002 2:33:45 PM PDT · by aculeus · 129 replies · 1,261+ views
    New Scientist ^ | 10 April 02 | Nicola Jones
    The Earth's magnetic poles might be starting to flip say researchers who have seen strange anomalies in our planet's magnetic field. The magnetic field is created by the flow of molten iron inside the Earth's core. These circulation patterns are affected by the planet's rotation, so the field normally aligns with the Earth's axis - forming the north and south poles. But the way minerals are aligned in ancient rock shows that the planet's magnetic dipole occasionally disappears altogether, leaving a much more complicated field with many poles all over the planet. When the dipole comes back into force, the...
  • Ancient Mariners Reveal Tales From The Earth's Core

    05/12/2006 4:59:30 PM PDT · by blam · 23 replies · 874+ views
    Nature ^ | 5-11-2006 | Phillip Ball
    <p>Ship logs and pottery show how the geomagnetic field has changed.</p> <p>Old ship records of magnetic north have helped to unravel a record of our planet's field.</p> <p>While sailors plied the Seven Seas in the seventeenth and eighteenth centuries, little did they know that their ships' logs would one day help scientists to reconstruct the history of the Earth's magnetic field.</p>
  • Forget global warming, worry about the MAGNETOSPHERE: Earth's magnetic field is collapsing ...

    01/28/2014 4:32:23 AM PST · by Daffynition · 88 replies
    Daily Mail ^ | 27 January 2014 | Ellie Zolfagharifard
    Full title: Forget global warming, worry about the MAGNETOSPHERE: Earth's magnetic field is collapsing and it could affect the climate and wipe out power grids Deep within the Earth, a fierce molten core is generating a magnetic field capable of defending our planet against devastating solar winds. The protective field extends thousands of miles into space and its magnetism affects everything from global communication to animal migration and weather patterns. But this magnetic field, so important to life on Earth, has weakened by 15 per cent over the last 200 years. And this, scientists claim, could be a sign that...
  • The sun's magnetic field is about to flip

    12/30/2013 9:48:19 AM PST · by Farnsworth · 44 replies
    Sun Herald ^ | December 30 2013 | NASA
    The sun is flipping its poles! Actually, NASA reports that this phenomenon happens about 11 years, when the sun's vast magnetic field flips. "It looks like we're no more than three to four months away from a complete field reversal," said solar physicist Todd Hoeksema of Stanford University. "This change will have ripple effects throughout the solar system." A video shows how the sun will complete the reversal, which appens at the peak of each solar cycle as the sun's inner magnetic dynamo re-organizes. The current "flip" is the midway point of Solar Cycle 24, NASA said. Hoeksema is the...
  • ‘Will We Soon Find Ourselves Back In The Stone Age?’ Why Swarm Is Watching Our Magnetic Field

    11/25/2013 10:59:28 AM PST · by BenLurkin · 44 replies
    universetoday.com ^ | November 25, 2013 | Elizabeth Howell on
    The European Space Agency’s Swarm constellation flew into space on Friday (Nov. 22) on a quest to understand more about the Earth’s magnetic field. Around the same time, ESA put out a few videos explaining why the magnetic field is important. This one explains that the magnetic field has weakened over the past few years, while the north pole has shifted direction. “In fact, a whole pole reversal is possible,” the narrator says. “It happened last 780,000 years ago at the very beginning of human history. But cavemen didn’t have mobile phone networks, GPS networks or power supplies.” If a...
  • Serious Climate Change: Winds Blew in Reverse During Last Ice Age

    01/24/2007 7:50:30 AM PST · by jcb1379 · 30 replies · 979+ views
    Live Science ^ | 1-23-07 | Andrea Thompson
    In one of the most stark illustrations of how a changing climate can have regional effects, scientists have learned that winds over North America have done a complete 180 since the time of the last Ice Age several thousand years ago. Winter blizzards and spring thunderstorms today are usually fueled by moisture-laden winds blowing in from the West Coast. “In this study, we found evidence that during the last glacial period, about 14,000 to 36,000 years ago, the prevailing wind in this zone was easterly, and marine moisture came predominantly from the East Coast,” said lead study author Xiahong Feng...
  • Wandering Hot Spots Worry Geologists

    12/18/2001 4:04:43 AM PST · by blam · 18 replies · 921+ views
    New Scientist ^ | 12-18-2001 | Betsy Mason
    Wandering hot spots worry geologists 09:48 18 December 01 Betsy Mason, San Francisco "Hot spots" where plumes of molten magma break through the Earth's crust appear to be wandering across the planet - a discovery that undermines many of the accepted ideas about how the Earth's tectonic plates are moving. Geologists thought that magma plumes such as the one that created the Hawaiian Islands remain in place as the plates of the Earth's crust move over them. For years, they have used these hot spots as a fixed frame of reference to gauge the motion of the plates relative ...
  • Energy source of northern lights found

    12/11/2007 4:57:54 PM PST · by NormsRevenge · 34 replies · 154+ views
    AP on Yahoo ^ | 12/11/07 | AP
    SAN FRANCISCO - Scientists think they have discovered the energy source of the spectacular color displays seen in the northern lights. New data from NASA's Themis mission, a quintet of satellites launched this winter, found the energy comes from a stream of charged particles from the sun flowing like a current through twisted bundles of magnetic fields connecting Earth's upper atmosphere to the sun. The energy is then abruptly released in the form of a shimmering display of lights visible in the upper latitudes of the Northern Hemisphere, said principal investigator Vassilis Angelopoulos of the University of California, Los Angeles....
  • Canada no longer the true north?

    03/19/2002 12:16:17 PM PST · by Oxylus · 15 replies · 333+ views
    National Post ^ | March 16, 2002 | Siobhan Roberts
    Wandering pole: Scientists predict Mag North will leave our territory by 2005 When Scene in the Northwest, a painting by the explorer and artist Paul Kane, was sold to an unnamed Canadian buyer in Toronto for more than $5-million on Feb. 25, Canada reclaimed a work of art commemorating an important event in her history: the 19th-century quest for the North Magnetic Pole. But new data suggests the Magnetic Pole will soon be leaving Canadian territory and heading for Russia. Estimates say that the pole, known as Mag North, has been in what is now Canada for at least four...
  • Earth's Pole Has Moved 161 Miles In The Last 6 Months

    06/02/2013 4:52:06 PM PDT · by SunkenCiv · 250 replies
    YouTube ^ | Jun 1, 2013 | uploaded by Mike Smitin
    The magnetic north pole has moved 161 miles in 6 months only, this puts its arrival in Siberia in less that 2 years, and it is when it arrives there that it will have migrated 40 degrees across the northern hemisphere at this point the poles will shift at high speed over the equator until it reaches 40 degrees south, i will tell you what i expect to happen when it goes past the 40 degrees point in the coming uploads...
  • Earth's Chandler Wobble Changed Dramatically in 2005

    02/23/2013 1:31:31 PM PST · by SunkenCiv · 66 replies
    Technology Review ^ | August 31, 2009 | Physics arXiv Blog
    New analysis shows that the Chandler Wobble in Earth’s axis changed phase by 180 degrees in 2005. The question is why. If you travel to the Arctic and attempt to find the axis of Earth’s rotation, you’ll notice something odd. The position of this axis on Earth’s surface moves with a period of about seven years. This is the combined result of two effects. The one we’re interested today is called the Chandler Wobble, which has a period of 433 days and was discovered by American astronomer Seth Carlo Chandler in 1891. The Chandler Wobble is reasonably well understood. Any...
  • Wind can keep mountains from growing

    03/28/2011 7:40:41 PM PDT · by decimon · 23 replies · 1+ views
    University of Arizona ^ | March 28, 2011 | Unknown
    Wind is a much more powerful force in the evolution of mountains than previously thought, according to a new report from a University of Arizona-led research team. Bedrock in Central Asia that would have formed mountains instead was sand-blasted into dust, said lead author Paul Kapp. "No one had ever thought that wind could be this effective," said Kapp, a UA associate professor of geosciences. "You won't read in a textbook that wind is a major process in terms of breaking down rock material." Rivers and glaciers are the textbook examples of forces that wear down mountains and influence their...
  • Magnetic Polar Shifts Causing Massive Global Superstorms

    02/09/2011 2:02:49 PM PST · by jyro · 48 replies · 1+ views
    Salem-News ^ | 02/04/2011 | Terrence Aym
    (CHICAGO) - NASA has been warning about it…scientific papers have been written about it…geologists have seen its traces in rock strata and ice core samples… Now "it" is here: an unstoppable magnetic pole shift that has sped up and is causing life-threatening havoc with the world's weather. Forget about global warming—man-made or natural—what drives planetary weather patterns is the climate and what drives the climate is the sun's magnetosphere and its electromagnetic interaction with a planet's own magnetic field. When the field shifts, when it fluctuates, when it goes into flux and begins to become unstable anything can happen. And...
  • Cosmic Impact Site That Created Earth’s Axial Tilt and Fault Lines

    12/08/2010 8:07:46 PM PST · by mdraghici · 89 replies · 1+ views
    Cosmic Impact Site That Created Earth’s Axial Tilt and Fault Lines © Mihai Radu Draghici Abstract: Using Google Earth and browsing the geographic appearance of the Earth’s crust starting from the South Pacific Ocean right above Antarctica and traveling over to Drake’s Passage and into the South Atlantic Ocean there seems to be a visual trace that some sort of cosmic collision occurred in that area. (See Figure 1) The impact of the object surfed across the ocean and collided with the bottom of South America where it once connected to Antarctica creating Drake’s Passage opening. This impact also may...
  • Earth Is Undergoing True Polar Wander, Scientists Say

    10/03/2012 3:31:34 AM PDT · by SunkenCiv · 39 replies
    EarthSky.org ^ | October 2012 | Deborah Byrd
    Scientists based in Germany and Norway today published new results about a geophysical theory known as true polar wander. That is a drifting of Earth's solid exterior -- an actual change in latitude for some land masses -- relative to our planet's rotation axis. These scientists used hotspots in Earth's mantle as part of a computer model, which they say is accurate for the past 120 million years, to identify four possible instances of true polar wander in the past. And, they say, true polar wander is happening now... The scientists -- including Pavel V. Doubrovine and Trond H. Torsvik...
  • North By Northwest

    12/21/2007 3:13:32 PM PST · by blam · 38 replies · 310+ views
    Science News ^ | 12-21-2007 | Sid Perkins
    North by NorthwestThe planet's wandering magnetic poles help reveal history of Earth and humans Sid Perkins Hikers in the wilderness often place their faith in a trusty compass. But any navigator worth his salt knows that compasses can't truly be trusted: Only along certain longitudes in the Northern Hemisphere does a compass needle point due north. MOVED BY MAGNETISM. Explorers first found the north magnetic pole at Canada's Cape Adelaide in 1831. Blue dots (direct surface observations) and red dots (models using satellite data) denote the pole's movement since then. Green dots indicate the pole's future location if its current...
  • Scafetta’s new paper attempts to link climate cycles to planetary motion ( March 2012)

    08/08/2012 12:52:53 PM PDT · by Ernest_at_the_Beach · 15 replies
    Watts Up With That? ^ | March 21, 2012 | Anthony Watts
    Nicola Scafetta sent me this paper yesterday, and I read it with interest, but I have a number of reservations about it, not the least of which is that it is partially based on the work of Landscheidt and the whole barycentric thing which gets certain people into shouting matches. Figure 9 looks to be interesting, but note that it is in generic units, not temperature, so has no predictive value by itself.Fig. 9. Proposed solar harmonic reconstructions based on four beat frequencies. (Top) Average beat envelope function of the model (Eq. (18)) and (Bottom) the version modulated with a...
  • Geophysicist Discovers Why Earth 'Wobbles' [ 2004 ]

    06/27/2007 9:25:09 AM PDT · by SunkenCiv · 22 replies · 399+ views
    Science Daily ^ | May 20, 2004 | University Of Nevada, Reno
    The earth wobbles in space... and thanks to global positioning system (GPS) technologies, this wobble has been tracked with a precision of a few millimeters over the last decade... Geoff Blewitt, University of Nevada research geophysicist, has an explanation for this mysterious geo-wobble. "The theory, which my colleagues and I have proven using GPS observations of the Earth, is that it's likely to be caused by the surface matter being redistributed..." To make the Earth wobble, large amounts of mass need to be moved from one place to another so that the Earth is "off balance," according to NASA-funded researcher...
  • The 'wobble' that wipes out life on Earth every 2.5m years

    10/11/2006 11:43:56 PM PDT · by MadIvan · 87 replies · 3,939+ views
    The Daily Mail ^ | October 12, 2006 | JULIE WHELDON
    If you are the kind of person who worries about the future, this might not make happy reading.Scientists have found that on average mammal species enjoy only 2.5 million years of life before being wiped out because of the Earth's "wobble." They say when the tilt and orbit reach key points it can spark dramatic global cooling - and the last time this happened was 2.6 million years ago. This suggests we are overdue a wave of extinction. However, before you panic, scientists say our planet has changed beyond all recognition in the last 3 million years. The new research...
  • Global Warming Needs New Look at Mechanisms Involved

    01/26/2006 1:21:30 PM PST · by genefromjersey · 15 replies · 851+ views
    The Morning Paper-Special Edition | 01/26/06 | vanity
    Global Warming Needs “New Look” at Mechanisms Involved As Europe struggles with another week of sub-zero temperatures- (Russia and the Ukraine have reported –40 degree temperatures and considerable loss of life)- recent discoveries have been causing “the Greenhouse Gas Gang” some additional loss of composure. Last year, according to the January 14,2006 of “New Scientist” magazine, environmental engineer Frank Keppler, and his colleagues at the Max Planck Institute discovered that living plants emit a significant portion – 10% to 30 % ,depending on the season – of the methane –a more serious greenhouse gas than carbon dioxide- that makes its...
  • Rhythmic Submarine Volcanos And El El Niños

    08/29/2005 1:37:32 PM PDT · by SunkenCiv · 24 replies · 635+ views
    Science Frontiers ^ | September-October 1993 | William Corliss
    The real cause of El Ninos is still obscure. However, the recent discovery of over 1,000 previously unmapped submarine volcanos rising from the seafloor in the eastern Pacific may lead to El Nino's source. The synchronous eruption of, say, 100 of these volcanos might warm the ocean around Easter Island a tad -- just enough to warm the atmosphere above a bit -- resulting in a shift of the high pressure area.
  • Scientists probe link between magnetic polarity reversal and mantle processes

    08/03/2012 8:50:34 AM PDT · by Errant · 19 replies
    TerraDaily ^ | Aug 3, 2012 | Staff
    Scientists at the University of Liverpool have discovered that variations in the long-term reversal rate of the Earth's magnetic field may be caused by changes in heat flow from the Earth's core into the base of the overlying mantle. The Earth is made up of a solid inner core, surrounded by a liquid outer core, in turn covered by a thicker or more viscous mantle, and ultimately by the solid crust beneath our feet.
  • Ships' logs give clues to Earth's magnetic decline

    05/13/2006 9:51:41 AM PDT · by Crazieman · 59 replies · 1,699+ views
    New Scientist ^ | May 11, 2006 | Patrick Berry
    Ships' logs give clues to Earth's magnetic decline 19:00 11 May 2006 NewScientist.com news service Patrick Barry The voyages of Captain Cook have just yielded a new discovery: the gradual weakening of Earth’s magnetic field is a relatively recent phenomenon. The discovery has led experts to question whether the Earth is on track towards a polarity reversal. By sifting through ships’ logs recorded by Cook and other mariners dating back to 1590, researchers have greatly extended the period over which the behaviour of the magnetic field can be studied. The data show that the current decline in Earth's magnetism was...
  • The Enigma 1,800 Miles Below Us

    05/30/2012 9:29:52 AM PDT · by JerseyanExile · 29 replies
    New York Times ^ | May 28, 2012 | Natalie Angier
    As if the inside story of our planet weren’t already the ultimate potboiler, a host of new findings has just turned the heat up past Stygian. Geologists have long known that Earth’s core, some 1,800 miles beneath our feet, is a dense, chemically doped ball of iron roughly the size of Mars and every bit as alien. It’s a place where pressures bear down with the weight of 3.5 million atmospheres, like 3.5 million skies falling at once on your head, and where temperatures reach 10,000 degrees Fahrenheit — as hot as the surface of the Sun. It’s a place...
  • Nations most at risk from global warming [head for the hills!.......)

    10/25/2011 4:58:02 PM PDT · by Sub-Driver · 16 replies
    Nations most at risk from global warming Save this story to read later AAP October 26, 2011 10:17AM A THIRD of humanity, mostly in Africa and South Asia, face the biggest risks from climate change and rich nations in northern Europe will be least exposed, according to a new report. Bangladesh, India and the Democratic Republic of Congo (DRC) are among 30 countries with "extreme'' exposure to climate shift, according to a ranking of 193 nations by Maplecroft, a British firm specialising in risk analysis. Five Southeast Asian nations - Indonesia, Burma, Vietnam, the Philippines and Cambodia - are also...
  • Earth's magnetic pole shifting; Alaska may lose northern lights

    12/08/2005 9:19:41 PM PST · by rellimpank · 57 replies · 2,169+ views
    SAN FRANCISCO -- Earth's north magnetic pole is drifting from North America at such a clip that it could end up in Siberia in the next 50 years, scientists said Thursday. Despite accelerated movement over the past century, the possibility that Earth's fading magnetic field will collapse or that the magnetic poles will flip is remote. But the shift could mean that Alaska may no longer be able to see the high-altitude shimmering displays of colorful lights called the aurora borealis, or northern lights. Scientists have long known that magnetic poles migrate and in rare cases, swap places. But exactly
  • What keeps the Earth cooking?

    07/17/2011 3:00:13 PM PDT · by decimon · 27 replies · 1+ views
    Berkeley Lab scientists join their KamLAND colleagues to measure the radioactive sources of Earth's heat flowWhat spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes around the world to estimate that some 44 terawatts (44 trillion watts) of heat continually flow from Earth's interior into space. Where does it come from? Radioactive decay of uranium, thorium, and potassium in Earth's crust and mantle is a principal source, and in 2005 scientists in the KamLAND collaboration, based in...
  • Earth’s magnetic pole shifts, screws up runway at Florida airport

    01/08/2011 6:09:58 AM PST · by equaviator · 61 replies · 1+ views
    The Lookout | Liz Goodwin
    An airport in Tampa, Florida, has had to temporarily close its runways to keep up with Earth's magnetic north pole, which is drifting toward Russia at a rate of 40 miles per year. Fox News reports that the international airport was forced to adjust the signs on its busiest runway Thursday because pilots depend on the magnetic fields to navigate. The runway will be closed until Jan. 13, and will re-open with new taxiway signs that indicate its new location on aviation charts, the Tampa Bay Tribune reports. Paul Takemoto, a spokesman for the FAA, says the Earth's magnetic fields...
  • Mystery Planet: Is a Rogue Giant Orbiting Our Sun?

    02/16/2011 4:51:26 PM PST · by BenLurkin · 62 replies
    Time ^ | Wednesday, Feb. 16, 2011 | Michael D. Lemonick
    "What we're really saying," he explains, "is that there's suggestive evidence there might be something out there." And if a new planet exists — something Matese is emphatically not claiming at this point — then the Wide-field Infrared Survey Explorer (WISE) satellite should already have an image of it stored somewhere in its enormous database. How suggestive the evidence actually is, though, depends on whom you ask. If you ask Ned Wright, a UCLA astrophysicist and WISE principal investigator, he'll tell you, "It's really kind of flimsy. It's there, but they don't have super data." So while the latest version...
  • Earth's core rotating faster than rest of the planet but slower than previously believed

    02/21/2011 4:47:12 PM PST · by decimon · 29 replies
    University of Cambridge ^ | February 20, 2011 | Unknown
    New research gives the first accurate estimate of how much faster the Earth's core is rotating compared to the rest of the planet. Previous research had shown that the Earth's core rotates faster than the rest of the planet. However, scientists from the University of Cambridge have discovered that earlier estimates of 1 degree every year were inaccurate and that the core is actually moving much slower than previously believed – approximately 1 degree every million years. Their findings are published today, Sunday 20 February, in the journal Nature Geoscience. The inner core grows very slowly over time as material...
  • Magnetic polar shifts causing massive global superstorms

    02/06/2011 1:44:02 PM PST · by Vince Ferrer · 109 replies
    Helium ^ | Terrence Aym
    NASA has been warning about it…scientific papers have been written about it…geologists have seen its traces in rock strata and ice core samples… Now "it" is here: an unstoppable magnetic pole shift that has sped up and is causing life-threatening havoc with the world's weather. Forget about global warming—man-made or natural—what drives planetary weather patterns is the climate and what drives the climate is the sun's magnetosphere and its electromagnetic interaction with a planet's own magnetic field. When the field shifts, when it fluctuates, when it goes into flux and begins to become unstable anything can happen. And what normally...
  • Magnetic Polar Shifts Causing Massive Global Superstorms

    02/04/2011 8:37:22 PM PST · by abbyg55 · 226 replies · 1+ views
    Salem-News.com ^ | 2-4-11 | Terrence Aym
    NASA has been warning about it…scientific papers have been written about it…geologists have seen its traces in rock strata and ice core samples... Now "it" is here: an unstoppable magnetic pole shift that has sped up and is causing life-threatening havoc with the world's weather. Forget about global warming—man-made or natural—what drives planetary weather patterns is the climate and what drives the climate is the sun's magnetosphere and its electromagnetic interaction with a planet's own magnetic field. When the field shifts, when it fluctuates, when it goes into flux and begins to become unstable anything can happen. And what normally...
  • Wobbling Earth may turn zodiac forecasts wrong this year (Isaiah 24 and Revelation 6)

    WASHINGTON: All your horoscope predictions for the year 2011 are bound to be wrong. Why? Because the stars are not aligned as your astrologer thinks they are. All zodiac signs – Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius or Pisces – were originally based on the constellation the sun was in the day you were born. However, there is a major phenomenon that will disregard all this – the Earth wobbles, a phenomenon called precession. Over the 2,500 years or so since the zodiac was established, your sign has moved about a month relative to the...
  • Signs Of a Different Matter,North Pole Moving [Biff Buffington Reporting From Blizzard Central!!]

    01/21/2011 12:07:10 PM PST · by fight_truth_decay · 18 replies
    .kathyposner.com ^ | Friday, January 21, 2011 | Kathy Posner
    In April of 2009, the White Sox opening game was canceled due to a snowstorm. At the time I wrote a blog, “Global Warming? It’s snowing in April!!,” that wondered how the world could be warming up if the temperature were falling. Two recent stories about movement of the earth and moon seem to tie in. Snowmen protesting global warming. Courtesy of John M. NORTH POLE MOVING According to the Tampa Tribune, “A National Geographic News report described a gradual shift of the Earth's magnetic pole at nearly 40 miles a year toward Russia because of magnetic changes in the...
  • Earth's magnetic pole shift unleashing poisonous space clouds linked to mysterious bird deaths

    01/13/2011 1:17:23 PM PST · by The Comedian · 84 replies
    Natural News ^ | Thursday, January 13, 2011 | Mike Adams
    A theory of what might be happening The working theory in all this, at least for the birds, is that deadly space clouds are reaching into the lower atmosphere and killing these birds in flight, after which the birds fall to the ground. The reports of the birds experiencing "blunt trauma" are likely from the birds hitting the ground. What, exactly, would be found in these deadly space clouds that might be killing the birds? One possibility is that these clouds might be moving along with gaps in the magnetosphere that would invite deadly radiation to "fry" the birds in...
  • Shift of Earth's Magnetic North Pole affects Tampa airport....

    01/06/2011 8:52:44 AM PST · by TaraP · 89 replies
    TBO ^ | Jan 5th, 2011
    The airport has closed its primary runway until Jan. 13 to repaint the numeric designators at each end and change taxiway signage to account for the shift in location of the Earth's magnetic north pole. The closure of the west parallel runway will result in more activity on the east parallel runway and more noise for residential areas of South Tampa. The busiest runway will be re-designated 19R/1L on aviation charts. It's been 18R/36L, indicating its alignment along the 180-degree approach from the north and the 360-degree approach from the south. Later this month, the airport's east parallel runway and...