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The real reason ships have two balls by the compass, correcting magnetic errors at sea
Those two metal spheres are not decoration, they are Kelvin’s balls, part of a precise system that counteracts magnetic errors caused by steel hulls. This explains how permanent and induced magnetism ...
In-plane magnetic fields are responsible for inducing anomalous Hall effect in certain films, report researchers. By studying how these fields change electronic structures, the team discovered a large ...
Beijing Zhongke Journal Publising Co. Ltd. This study is led by Postdoctoral researcher Jiawei Gao from IGGCAS. Unlike Earth, Mars lacks a global dipolar magnetic field; the planet does have locally ...
Dot Physics on MSN
How a rotating coil generates induced EMF in a magnetic field
Discover how a rotating coil placed in a magnetic field generates an induced EMF. This video explains the core physics behind electromagnetic induction, showing how motion, magnetic flux, and ...
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