As well as research on tides Ferrel studied currents and storms, used tidal data to determine the mass of the moon, and he invented a machine to predict tidal maxima and minima.
Pati na rin ang pananaliksik sa tides Ferrel-aral ng tubig at storms, na ginagamit ng taib-tabsing data upang matukoy ang masa ng buwan, at siya ay likha ng isang machine upang mahulaan ang taib-tabsing maxima at minima.