english: And then they stood at two hilltops, two miles distant, and they did the same thing, on the assumption from Galileo that if light had a discernible speed, he'd notice a delay in the light coming back from his assistant's lamp.
non_english: 3 km vzdialené, a obaja robili to isté, na základe Galileovho predpokladu, že ak má svetlo znateľnú rýchlosť, všimne si oneskorenie svetla z lampy asistenta.