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Magneticfield

All articles tagged with #magneticfield

science1 year ago•3 min saved

Magnetic North Pole's Unprecedented Shift Towards Russia Baffles Scientists

The Earth's magnetic North Pole, which has been drifting towards Russia since the 19th century, is now moving at a slower pace, baffling scientists. This shift, caused by the movement of molten iron beneath the Earth's crust, has implications for navigation systems and other technologies reliant on magnetic fields. The World Magnetic Model, which tracks these changes, shows the pole's movement has decelerated from 50 km per year to about 15 miles annually. Understanding these fluctuations is crucial for accurate forecasting and navigation.

via Daily Mail|

#earthscience #geophysics #magneticfield

science2 years ago•3 min saved

"Study Reveals 8.5-Year Wobble Cycle in Earth's Core"

A new study by Chinese scientists reveals that Earth's inner core experiences a wobble around its rotational axis every 8.5 years, potentially affecting the planet's magnetic field. This wobble is thought to be caused by a misalignment between the inner core and the mantle, with a tilt of 0.17 degrees. The discovery, which rules out atmospheric, oceanic, and hydrological influences, could provide insights into Earth's geophysical dynamics and future changes in the magnetic field. The research was published in the journal Nature Communications.

via Space.com|

##earthscore #geophysics

science2 years ago•0 min saved

"Unveiling the Earth's Core Rhythmic Shift Every 8.5 Years"

Chinese scientists have discovered that the Earth's inner core undergoes a periodic wobble around its rotational axis every 8.5 years, a phenomenon that could impact our understanding of the Earth's magnetic field and geophysical properties. This wobble, detected at a depth of approximately 1,800 miles, occurs due to a slight misalignment between the inner core and the mantle. The study, published in Nature Communications, highlights the complex interactions within Earth's core, which influence the planet's day length and magnetic protection against solar radiation.

via Interesting Engineering|

##earthcore #geodynamics

astronomy2 years ago•2 min saved

Exploring the Magnetic Field of Lynds 43 Cloud.

Astronomers have used the James Clerk Maxwell Telescope to observe the nearby molecular cloud Lynds 43, revealing a complex and multiple-component magnetic field. The cloud contains a bright starless core embedded within a longer, more diffuse filament, a T-Tauri star, and a young Class I protostar. The magnetic field strengths in different regions of the cloud were calculated to be between 40-160 µG, with an estimated strength of 120-260 µG in the outflow region. The observations also found an alignment between the magnetic field and the outflow cavity walls, which is distinctly different from the magnetic field in the rest of the cloud.

via Phys.org|

#astronomy #bistro #jcmt