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  • 2 Apr 2021
    Gilbert’s simple sketch of the magnetic effect of a loadstone in Earth’s interior on a compass needle. From page 155 of De Re Magnete. (Simon Mitton)
    Simon Mitton

    The Magnetic Attraction of William Gilbert, pioneer of geomagnetism

    In this blog on the history of discovering the science of the Earth as a physical object I begin in antiquity with the philosopher Eratosthenes of Cyrene (276–194 BCE). He became first enquirer to arrive at a truly spectacular evidence-based result in Earth science: an estimate of the size of the Earth. An all-round scholar, […]

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