Galileo Galilei: Astronomer

• Telescope used for astronomy; not the last such repurposing
• Galileo reporting to the funding agency
• Observations
  • Moons of Jupiter
  • Venus phases: Ptolemaic vs Copernican predictions
    observed phases

Revolution I

• paradigm shift

Galileo Galilei: Physicist

• Free body motion
• Free fall ("Tower of Pisa" experiment)

Newton's Laws

1. Inertia
2. F = ma
3. Action-Reaction
   illustrated in a jump shot

   Universal Gravitation