PHYS171
Principles of Physics I
Chapter 6
Kepler’s Laws
•
All planets move in elliptical orbits with the sun at
one focus
•
The radius vector drawn from the sun to a planet
sweeps out equal area in equal time
•
The square of the orbital period of any planet is
proportional to the cube of the semi-major axis of
the elliptical orbit
Components of scientific method here, a compact set of rules defined which
describe complicated phenomena.
What is missing is the unifying mathematical principle

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