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Far Away, As If They Were Nearby The Story of Galileo, his Telescope and the Discoveries that Followed


The Ancient Model Greeks & Geocentrism


Ancient Greece

Pythagoras (570 BCE) Aristotle (384 BCE) Ptolemy (90 CE) The Almagest


Ptolemaic System

Geocentrism


Saturn

Jupiter

Venus Sun

Moon Earth

Mars

Mercury


Ptolemaic System

Geocentrism Epicycles


Saturn

Jupiter

Venus Sun

Moon Earth

Mars

Mercury


Ptolemaic System

Geocentrism Epicycles Perfect Spheres


Ptolemaic System

Geocentrism Epicycles Perfect Spheres Immutable


Ptolemaic System

Geocentrism Epicycles Perfect Spheres Immutable


Galileo Galilei


Galileo Galilei

Born in Italy, 1654 Physicist, Mathematician and Astronomer Scientific Method


The Telescope

Lippershey’s “Looker” Galileo’s Improvements ~30x Magnification


Four Important Discoveries


The Moons of Jupiter


Saturn

Jupiter

Venus Sun

Moon Earth

Mars

Mercury


Four Important Discoveries

The Moons of Jupiter


The Phases of Venus


Geocentric System

Heliocentric System

Sun Venus

Venus

Sun

Earth

Earth


Saturn

Jupiter

Venus Sun

Moon Earth

Mars

Mercury


Four Important Discoveries

The Moons of Jupiter The Phases of Venus


The Mountains of the Moon


Four Important Discoveries

The Moons of Jupiter The Phases of Venus The Mountains of the Moon


The Spots on the Sun


Scientific Revolution Moons of Jupiter Not everything orbits the Earth

Phases of Venus Venus definitely orbits the Sun

Ridges on the Moon The Moon is not a perfect sphere

Sunspots The sky is not immutable



Far Away, As If They Were Near