The New Thoughts of Galileo

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Surfaces of different cylinders, and their proportion, 33. etc.

Every body descends equally in a vacuum, 57
Turns and returns of strings, and their proportion, 85 and 88
Tremblings of consonances represented to the eye, 105
Tremblings of strings in unison, 91
Tremblings of Lute strings, counted and numbered, 97

Resonant glass, jumps to the octave, 92
Natural speed, why it increases, 18, 32
Speed of projectiles measured, 137
Acquired speed, explained, 186
Vacuum, and its force, 8, 9, etc.
Speed of bodies in the air, 61, etc.
Vacuum poorly proven by Aristotle, 46
Union of air pulses, cause of consonances, 99
Unison, why it makes strings tremble, 90
Unity, alone infinite, 25
Cannon flights determined, 255