[4]

Galileo attacks by Argument and Experiment the Aristotelian
Laws of Gravity

[5]

Opposition of the Aristotelians to his Discoveries

[6]

A Method of clearing out the Harbour of Leghorn proposed
by Don Giovanni de' Medici

[6]

Galileo opposes this Opinion; is persecuted in consequence

[6]

He obtains the Professorship of Mathematics at the University
of Padua