Observational Tests: Observations are the ultimate test of physical models and their predictions. Both Tycho Brahe and Galileo Galilei made decisive observations that helped distinguish between the geocentric and heliocentric models for the solar system. Compare and contrast the types of observations that Tycho and Galileo gathered. Which do you think was more persuasive to astronomers at the time? How about to educated members of the public?

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The Answer of Observational Tests: Observations are the ultimate test of physical models and their predictions. Both Tycho Brahe and Galileo Galilei made decisive observations that helped distinguish between the geocentric and heliocentric models for the solar system. Compare and contrast the types of observations that Tycho and Galileo gathered. Which do you think was more persuasive to astronomers at the time? How about to educated members of the public?

Observational Tests: Observations Are the Ultimate Test of Physical Models