Greek philosophers taught that the source of river water was not rain but seawater that somehow flowed under the earth to the top of the mountains, becoming fresh springwater.
Kreeka filosoofid õpetasid, et jõgesid ei toida mitte vihma -, vaid merevesi, mis voolab kuidagi maa alt mägede tippudesse, kus see muutub magedaks allikaveeks.