Keyword: chandlerswobble

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  • Ice Ages Blamed On Tilted Earth

    04/30/2006 4:35:48 PM PDT · by blam · 77 replies · 1,750+ views
    Live Science ^ | 3-30-2005
    Ice Ages Blamed on Tilted Earth By Michael Schirber LiveScience Staff Writer posted: 30 March 2005 In the past million years, the Earth experienced a major ice age about every 100,000 years. Scientists have several theories to explain this glacial cycle, but new research suggests the primary driving force is all in how the planet leans. The Earth’s rotation axis is not perpendicular to the plane in which it orbits the Sun. It's offset by 23.5 degrees. This tilt, or obliquity, explains why we have seasons and why places above the Arctic Circle have 24-hour darkness in winter and constant...
  • 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...
  • In Climate Controversy, Industry Cedes Ground

    01/23/2007 10:19:12 AM PST · by Tolerance Sucks Rocks · 28 replies · 1,119+ views
    Wall Street Journal ^ | January 23, 2007 | Jeffrey Ball
    The global-warming debate is shifting from science to economics. For years, the fight over the Earth's rising temperature has been mostly over what's causing it: fossil-fuel emissions or natural factors beyond man's control. Now, some of the country's biggest industrial companies are acknowledging that fossil fuels are a major culprit whose emissions should be cut significantly over time. A growing number of these companies are pushing for a mandatory emissions limit, or "cap." Some see a lucrative new market in clean-energy technologies. Many figure a regulation is politically inevitable and they want to be in the room when it's negotiated,...
  • Sun, moon trigger San Andreas tremors: study

    12/23/2009 3:30:56 PM PST · by decimon · 17 replies · 642+ views
    Reuters ^ | Dec 23, 2009 | JoAnne Allen
    WASHINGTON (Reuters) – Tidal forces parallel to a segment of the San Andreas Fault in central California may be causing non-volcanic tremors that could help predict earthquakes, researchers said on Wednesday. Low-level tremors have long been associated with volcanoes, because they often warn of impending eruptions. A study published in the journal Nature says these tremors beneath the San Andreas Fault could provide similar clues about earthquakes. The researchers say the faint tug of the sun and the moon on the fault causes tremors well below the level where earthquakes occur. The finding suggests that rock far underground is lubricated...
  • 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...
  • 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...
  • 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 · 40 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.
  • Chandler's Wobble Causes Earthquakes, Volcanism, El Nino, and Global Warming

    01/18/2005 8:58:05 PM PST · by IGBT · 27 replies · 1,990+ views
    Michael Wells Mandeville ^ | 2004 | Michael Wells Mandeville
    The exact location of the North and South Poles of the Earth's spin axis are constantly changing while the Earth's crust wobbles slightly around and over the poles in the 14 month and 6.5 year cycles of Chandler's Wobble. The eigth graphs in this story board demonstrate that peaks of seismic and volcanic activity come and go in accordance with these rhythms of Chandler's Wobble to produce the El Nino syndrome. The graphs also prove that the total amount of this activity has progressively increased during the last 50 years while the center of Chandler's Wobble has slowly drifted towards...