Page "Edward Sabine" Paragraph 29
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During these decades the Royal Navy and Royal Society devoted so much energy to the problems of magnetic variation that magnetism came to be seen as an eminently " British " science.
There was intense interest in figuring out what many called " the great remaining physical mystery since Newton's work on gravitation.
" By the beginning of the nineteenth century, it was widely recognized that the Earth's magnetic field was continually changing over time in a complicated way that interfered with compass readings.
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