Galileo: The Father of Modern Physics

1
Galileo The Father of Modern Physics

• Malerie Bickhart
• Dan Bertolino
• Alissa DiClemente

2
This PowerPoint presentation will address our
interest in learning more about the man behind
our scientific teachings. We will see what other
contributions he made to the scientific world
besides the mathematical equations we have used.
3

• Galileo began his career against the wishes of
  his father who wanted him to study medicine.
  Instead, he studies the work of Euclid and
  Archimedes. He later teaches Mathematics. He
  published many of his discoveries and theories.

4
Galileos contributions to Physics

• Showed that time of descent was independent of
  the objects mass.
• His principle of inertia which states "A body
  moving on a level surface will continue in the
  same direction at constant speed unless
  disturbed." This principle of inertia is part of
  Newtons first law of motion.

5

• Was one of the first people to understand sound
  frequency. His experiments consisted of scraping
  a chisel at different speeds.
• The Basic Principle of Relatively- this says that
  for any system moving at a constant speed and in
  a straight line, the laws of physics are the
  same. This is regardless of the speed or
  direction.

6
Uniform Acceleration

• The theory states that equal increments of speed
  are gained in equal increments of time.
• This can be represented by an equation, so the
  slope of a speed versus time graph is the
  acceleration. The equation is similar to the
  equation for uniform speed.

7
Galileos Theory of the Tides
-Connected to the Copernican Theory of the
Universe -Discussed in his writing, The
Dialogue -Tides are both effects of the Earths
motions and the Earths motions themselves
Galileos depiction of the irregular motion of
the tides
8
Some of his inventions

• Pendulum Clock
• Pump for Sailing
• Telescope

9
The Pendulum Clock

• 1602 discovery while at the University of Pisa
• Period does not depend on arc
• Led to study of time intervals and thus this clock

10
The Nautical Pump

• Invented in 1592 while at Padua University
• Used oar as a lever and water as a fulcrum
• Raised water using only one horse

11
The Telescope

• In 1609 Galileo made his first telescope
• Strongest of its kind- magnified 20 times
• Other European telescopes only magnified 3 times

12
Contributions to astronomy and discoveries with
the Telescope

• Discovered 3 of Jupiters 4 largest moons
• Discovered that Venus had a full set of phases
  similar to that of the moon
• Was one of the first Europeans to observe
  sunspots
• Was the First person to report lunar mountains
  and craters
• Supernova
• Proved the Copernican Theory

13
Galileos controversy
The conflict between religion and science
14

• Besides researching the observations of other
  scientists, Galileo studied the stars and
  universe with his telescope. He published his
  discoveries to the dismay of the church. Because
  his papers went against the Bibles teachings
  that the earth is stationary and the sun is
  mobile, future publication of his works was
  prohibited.
• Galileo stood trial in 1633 for suspicion of
  heresy and he was sentenced to house arrest. In
  the painting, he is depicted at the Roman
  Inquisition.

15
Galileo died on January 8, 1642

• Portrait of Galileos tomb

16
The lasting legacy of Galileo

• His works on the tides, parabolic motion,
  uniform acceleration, astronomy and the pendulum
  influenced future scientific discoveries and
  continue to shape the course of science and
  physics today.

17
Works Cited

• http//galileo.rice.edu/sci/observations/tides.htm
  l
• http//www-groups.dcs.st-and.ac.uk/history/Mathem
  aticians/Galileo.html
• http//en.wikipedia.org/wiki/Galileo_affair
• http//en.wikipedia.org/wiki/Galileo_Galilei
• John Hopkins lecture notes 1/26/2007