linguistic:voice_change
Meteorology

Rather than assuming that earthquakes were the result of supernatural whims, Thales explained them by theorizing that the Earth floats on water and that earthquakes occur when the Earth is rocked by waves. He is attributed with the first observation of the Hyades, supposed by the ancients to indicate the approach of rain when they rose with the Sun. According to Seneca, Thales explained the flooding of the Nile as due to the river being beaten back by the etesian wind.