1269 – Epistola de Magnete

In 1269, Pierre or Peter Peregrinus of Maricourt wrote a letter to a friend discussing magnetism called “Epistola de Magnete” that explained how magnets attract and repel each other and how to identify the poles of a compass.

Peregrinus was a tutor of Roger Bacon.

PREREQUISITE:
magnets of Carthage
compass

SUBSEQUENT:
de Magnete (Gilbert)
Roger Bacon

One Response to “ 1269 – Epistola de Magnete ”

  1. […] 1269 – Epistola de Magnete – Peregrinus 1600 – de Magnete – Gilbert 1746 – Leyden jar 1800 – the voltaic pile is an early battery – Volta 1812 – electric force equation – Poisson 1820 – current in a wire creates magnetic field – Oersted 1820 – electricity and magnetism are linked – Ampere 1826 – electroscopic force (Ohm’s Law) – Ohm 1831 – electromagnetic induction – Faraday and Henry (Faraday’s law) 1846 – light is linked to electromagnetism – Faraday 1855 – vacuum tube 1855 – alternating current – Duchenne 1873 – electromagnetic waves – Maxwell 1875 – acoustic telegraph (telephone) – Bell 1880 – electricity distribution system – Edison 1886 – alternating current power system – Westinghouse 1887 – photoelectric effect – Hertz 1891 – transmission of electric energy without wires – Tesla 1895 – X-ray radiation – Roentgen 1897 – electron discovered – JJ Thomson 1900 – quanta – Planck 1909 – electron charge (Milikan) […]

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