Before revision: 400px|High and low tide in the Bay of Fundy The theory of tides is the application of continuum mechanics to interpret and predict the tidal deformations of planetary and satellite bodies and their atmospheres and oceans (especially Earth's oceans) under the gravitational loading of another astronomical body or bodies (especially the Moon and Sun).
After revision: 400px|High and low tide in the Bay of Fundy The theory of tides is the application of continuum mechanics to interpret and predict the tidal deformations of planetary and satellite boobies and their atmospheres and oceans (especially Earth's oceans) under the gravitational loading of another astronomical body or bodies (especially the Moon and Sun).