Galileo Galilei

1
Galileo Galilei

• Born in Pisa, Italy
• Born in 1564
• Mathematician, scientist, and astrologist
• Also studied magnetism and the effects of
  lodestones

2
Galileo the Astronomer

• Biggest discovery as an astronomer was locating
  the satellites of Jupiter
• He called them Medicea Siderea
• Studying the stars helped him to come to support
  Copernicus and the idea of heliocentricity

3
Galileos Inventions

• Thermoscope
• A device used to measure hot and cold
• It was heated with the hands and immersed in a
  vessel containing liquid. When the hands were
  removed, the liquid rose to a certain height,
  remaining above the level of the liquid in the
  vessel.

4
More inventions

• Telescope
• Galileo did not invent this, only improved it
• He used it to find such celestial bodies as
  satellites of Jupiter, to study Saturn and
  observe the phases of Venus

5
More Inventions

• Machine designed to raise water (model)
• The pair of horses move the column in the center
  of the model which activates the four pumps,
  which will draw the water up from the wells.

6
Galileo supports Copernicus

• Galileo and Copernicus both believed in a
  helio-centric universe
• They thought differently than Aristotle and
  Ptolemy
• Galileo was punished by the church for believing
  this way

7
Cardinal Bellarmino

• Cardinal Bellarmino and Friar Tommaso Caccini
  condemned Galileo for his heliocentric beliefs
• Bellarmino prohibited Galileo to teach his idea
• After the trial, Galileo was condemned to stay in
  his home