Galileo's father, vincenzo galilei, a lutenist and music theorist, had performed experiments establishing perhaps the oldest known non-linear relation in physics: for a stretched string, the pitch varies as the square root of the tension.
Ubaba ka Galileo, Vincenzo Galilei, ongumlobi wezomculo wezokwelapha kanye nomculi wezomculo, wayenze izivivinyo zokuthola mhlawumbe ubudlelwane obudala obungeyona eyaziwayo ku-physics: ngentambo eyeluliwe, iphimbo liyahluka njengempande yesikwele.