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New Insights Into Origin Of Earth's Magnetic Field

Date:
March 10, 2007
Source:
Delft University of Technology
Summary:
Research recently conducted at Delft University of Technology marks an important step forward in understanding the origins of the Earth's magnetic field. The research findings are published this week in the scientific journal Physical Review Letters.

Research recently conducted at Delft University of Technology marks an important step forward in understanding the origins of the Earth's magnetic field. The research findings are published this week in the scientific journal Physical Review Letters.

Science attributes the creation of the Earth's magnetic field to the movement of electricity conducting liquids in the molten core of the Earth. Researchers have recently conducted experiments to replicate and study this mechanism.

Experiments conducted in Riga (1999) revealed for the first time that a cylindrical-shaped fluid flow of metal moving in a spiralling motion can generate a slowly growing magnetic field. This was followed by the EU research project MAGDYN (2001-2005), which aimed to show how the generated magnetic field itself is capable of persisting.

The design of these experiments and the theoretical interpretation of the data relied heavily on the statistical simulation models developed by Dr. Sasa Kenjeres and Prof. Kemal Hanjalic of Delft University of Technology's Multi Scale Physics department. Moreover, their theoretical and statistical model was the first to explain and predict the observable effects in Riga.

Based on the findings of Kenjeres and Hanjalic, a new generation of experimental facilities have now been developed in the US (Los Alamos and Maryland, among other places), Grenoble and Russia (Perm). These facilities will allow the Earth's magnetic core to be replicated more realistically than ever before. The new experiments are expected to provide valuable new insights into the Earth's magnetic field.


Story Source:

The above story is based on materials provided by Delft University of Technology. Note: Materials may be edited for content and length.


Cite This Page:

Delft University of Technology. "New Insights Into Origin Of Earth's Magnetic Field." ScienceDaily. ScienceDaily, 10 March 2007. <www.sciencedaily.com/releases/2007/03/070309103129.htm>.
Delft University of Technology. (2007, March 10). New Insights Into Origin Of Earth's Magnetic Field. ScienceDaily. Retrieved April 21, 2014 from www.sciencedaily.com/releases/2007/03/070309103129.htm
Delft University of Technology. "New Insights Into Origin Of Earth's Magnetic Field." ScienceDaily. www.sciencedaily.com/releases/2007/03/070309103129.htm (accessed April 21, 2014).

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