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Ancient asteroid grains reveal hidden magnetic past of our solar systemExperts theorize the interaction between the newly formed sun and the ionized gas created a magnetic field that filled the ...
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Migratory birds can use Earth's magnetic field like a GPSEurasian reed warblers (Acrocephalus scirpaceus) appear to calculate their geographical position by drawing data ... rely on cues from the sun, the stars and Earth’s magnetic field to determine ...
A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...
This article was originally published with the title “ Magnetic Fields on the Quiet Sun ” in Scientific American Magazine Vol. 215 No. 5 (November 1966), p. 54 doi:10.1038 ...
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