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Why ships have two big metal balls on the compass stand, the simple fix for a steel ship’s magnetic errors
Modern steel ships warp a magnetic compass with both permanent and induced magnetism, and the binnacle is packed with clever countermeasures to cancel it out. This breaks down hard iron vs soft iron ...
Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have uncovered previously unobserved oscillation ...
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