suggested aurorae caused magnetic effluvia moving along earth 's magnetic field lines instruments classification scales hemispherical cup anemometer king sejong 's son prince munjong korea invented first standardized rain gauge sent throughout joseon dynasty korea official tool assess land taxes based upon farmer 's potential harvest leone battista alberti developed swinging plate anemometer known first ''anemometer'' ref name jacobson ref galileo galilei constructed thermoscope johannes kepler wrote first scientific treatise snow crystals strena seu de
Social science Geography Physical geography Meteorology