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Latest Dynamo theory Stories

New Model May Explain Magnetized Moon Rocks
2011-11-10 06:06:46

A team of scientists has proposed a novel model for the generation of a global magnetic field in the ancient moon, something that could help solve a decades-old mystery about the presence of magnetized rocks on the moon´s surface. Since the moon currently has no global magnetic field, these rocks have puzzled experts since the days of the Apollo program. The Earth´s magnetic field exists because it has a spinning solid core surrounded by hot metallic liquid, which churns...

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2011-05-20 12:25:00

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 Institute of Technology.The findings, published tomorrow in Nature, could help us understand how the inner core formed and how the outer core acts as a 'geodynamo', which generates the planet's magnetic field."The origins of Earth's magnetic field remain a mystery to scientists," said...

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2009-06-15 08:31:30

400 years of discussion and we're still not sure what creates the Earth's magnetic field, and thus the magnetosphere, despite the importance of the latter as the only buffer between us and deadly solar wind of charged particles (made up of electrons and protons). New research raises question marks about the forces behind the magnetic field and the structure of Earth itself. The controversial new paper published in New Journal of Physics (co-owned by the Institute of Physics and the German...