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Transcript
Early Astronomers
the evolution of our space model
Geocentric model (1)
-
Earth centered
universe
-
Earth is the center
of the solar system
-
Stars rotate around
the Earth.
Earth centered model
Earth
Aristotle (2)
-
Grandfather of
science
-
Used observation
based science.
-
Did experiments to
study scientifically.
-
So respected his
wrong ideas were
taught.
Star trails
Ptolemy (3)
-
Astronomer and
mathematician
-
Published ideas in
books.
-
He “made” the
math work for the
geocentric model.
Heliocentric model (4)
-
Sun centered
universe.
-
Planets are in orbits
around the Sun.
-
Stars are distant
and do not move.
Copernicus (5)
-
Brought heliocentrism
to the Renaissance
-
Used scientific
observation.
-
Discovered Earth
rotates on its own axis
-
His followers were
called Copernicans
Sun centered model
Copernicus’s
diagram
Sun
Sun
Sun
Galileo (6)
-
Built a telescope to
prove Copernican
model correct.
-
Forced to admit
wrong-doing by the
Church
-
Although locked
away for life, his
ideas were shared in
books
Sun
Sun
Modern Universe Model
- today’s model