What is the difference between a barnacle and a binnacle? Anyone? Anyone? Well, yes, both are related to the sea, but the difference ends there. A barnacle is a small marine animal that likes to ...
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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 ...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
THIS first volume, which is to be followed by a second devoted to ships' compasses, takes a wide sweep over physical science generally. Sound waves, light waves, kathode rays, Röntgen rays and ...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
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