The Galileo Project | Science | Pendulum Clock https://galileo.library.rice.edu/sci/instruments/pendulum.html
But because his being deprived of sight prevented his making drawings and models
Dein Suchergebnis zum Thema: Model
Building an Inexpensive Galilean-Style Telescope https://galileo.library.rice.edu/lib/student_work/astronomy95/telescope_design.html
Note: The easiest way to create the telescope is by looking at past models.