'Avatar: Fire and Ash' Climbs Past Chris Hemsworth's Disappointing MCU Movie at the Box Office

Fire and Ash further up the all-time charts. Now the 79th highest-grossing movie in U.S. box office history, Fire and Ash has ...
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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 ...