2. Copernicus
ď‚— In On the Revolutions
of the Heavenly
Spheres he proposed
a heliocentric model
of the universe.
3. Brahe
ď‚— Provided evidence
that supported
Copernicus’ theory.
ď‚— Set up an
astronomical
observatory where
every night for years
he recorded data
about the movement
of heavenly bodies.
4. Kepler
 Used Brahe’s data to
calculate the orbits of
the planets revolving
around the sun.
ď‚— His studies supported
Copernicus’ theory
but had the orbits
described the orbits
as elliptical, not
circular.
5. Galileo
ď‚— Was tried before the
Inquisition because
his ideas of moving
heavenly bodies, such
as moons revolving
around Jupiter which
he observed through
his telescope,
contradicted the
Church’s teachings
that the heavens were
fixed, unmoving, and
perfect.
ď‚— He would reluctantly
recant his claims.
6. Bacon
ď‚— Rejected long held
methods and ideas of
scientific study by
arguing that a long
process of
investigation was
necessary to discover
the truth.
ď‚— Stressed
experimentation and
observation.
7. Descartes
ď‚— Rejected long held
methods and ideas of
scientific study by
arguing that a long
process of
investigation was
necessary to discover
the truth.
ď‚— Stressed human
reasoning.
8. Vesalius
ď‚— His On the Structure
of the Human Body
was the first accurate
and detailed study of
the human anatomy.
12. Newton
ď‚— Published
Mathematical
Principles of Natural
Philosophy explaining
the law of gravity and
other forces in the
universe.
ď‚— Outlined uniform laws
that could be
measured and
described
mathematically.
13. Newton’s Laws of Motion
1. A body in motion will
remain in motion
unless acted upon by
an outside force. (Law
of Inertia)
2. Acceleration is
produced when a
force acts on a mass.
The greater the mass
of the object the
greater the amount of
force needed
3. For every action there
is an equal and