Hooke observed that the planet Jupiter rotates on its axis, and his sketches of Mars were used two centuries later to determine the planet’s rate of rotation.
Huks novēroja, ka Jupiters rotē ap savu asi, un Huka zīmētās Marsa skices divus gadsimtus vēlāk tika izmantotas, lai noteiktu šīs planētas rotācijas ātrumu.