PS 320 - Classical Mechanics
Embry-Riddle University
Spring 2003
Anthony Reynolds

The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful. If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living.
- Henri Poincaré.

“… it was not clear to me as a young student that access to a more profound knowledge of the more basic principles of physics depends on the most intricate mathematical methods.  This dawned on me only gradually after years of independent scientific work."
--- Albert Einstein



NEWS

 Tips on making effective presentations 

 Chaos in the solar system 
Lynx and hare populations in Canada
  The falling chain   
Earth's J2 is changing!

OLD NEWS

WELCOME!



INFORMATION

Text: Classical Dynamics of Particles and Fields, 4th edition, by Marion and Thornton.
See the syllabus for more detailed information.

This is the first semester in which you really apply the mathematics you have learned, and in which really begin to discover some of the more sophisticated concepts in physics.  Your first taste of this was in PS 303 - Modern Physics, and now your "physical education" begins in earnest.

We will cover:
Fundamentals of mechanics, oscillatory motion, systems of particles, varying mass, motion under central forces, motion in three dimensions, gyroscopic motion, generalized coordinates, normal coordinates, Lagrangian and Hamiltonian formulations, and numerical projects.
Prerequisites: MA 345 (Differential Equations and Matrix Methods), ES 204 (Dynamics), PS 219 (Physics III).
Corequisites: PS 303 (Modern Physics)


SCHEDULE  

Week

Topics

Chapters in Marion

1-4

Newton’s laws
Gravitation
Exam 1 – Fri Jan 31

1, 2
5

5-9

Linear oscillations
Nonlinear dynamics
Lagrangian & Hamiltonian dynamics
Exam 2 – Fri Mar 7

3
4
6, 7

10-13

Central force motion
Two-body collisions
Rigid rotators
Coupled oscillators
Exam 3 – Fri Apr 11

8
9
11
12

 

14

Project presentations

 

 


PROJECT (click for information)

For a short overview of chaos, read the FAQ from sci.nonlinear.  

Some links to nonlinear dynamics and chaos are listed here to give you some starting ideas for your project.  I have several good books in my office that you can check out for other ideas.

Useful books in the LIBRARY:
Understanding Nonlinear Dynamics, by Kaplan & Glass, QA 845.K36 1995
Chaotic Vibrations: An Introduction for Applied Scientists and Engineers, by Moon, QA 845.M66 1987
Introduction to Experimental Nonlinear Dynamics, by Virgin, QA 845.V57 2000
Order within Chaos, by Berge, Pomeau & Vidal, QA 614.8 B4713 1986
Nonlinear Oscillations, by Nayfeh & Mook, QA 402 N34 1979
Nonlinear Oscillations in Physical Systems, by Hayashi, QA 867.5 H39 1985
Exploring Chaos, by Hall, Q172.5.C45 E98 1993

Useful web sites:
 Nonlinear math archive
 Chaos at Maryland
 Nonlinear Glossary
 newsgroup: sci.nonlinear

If you absolutely have no ideas, choose one of the following systems to analyze

I - The van der Pol oscillator
 van der Pol 1

 van der Pol 2
 van der Pol 3

II - The Duffing attractor
 Duffing 1

 Duffing 2
 Duffing 3

III - The Lorenz attractor
 Lorenz 1

 Lorenz 2
 Lorenz 3

Matlab example.  Here are the two files that we discussed in class that solves the Volterra system:
 volterra.m 
 fvol.m 

If you still have no ideas, here are some possibilities
the restricted 3 body problem (i.e., chaos in the solar system)
Chua's oscillator
population models (e.g., the spread of diseases)
nonlinear electrical circuits
chemical reaction dynamics (e.g., the B-Z reaction)
synchronous firefly flashing
neuron firing
chaotic pendulums
chaotic heartbeats
the spring pendulum
coupled oscillators
nonlinear springs

 


LINKS

George Green (1793-1841), baker and mathematician.  More information can be found here.

Vito Volterra (1860-1940), mathematician interested in integral equations and predator-prey models.
Info concerning the Lotka-Volterra model.  Some other models of populations can be found here and here.

Jocopo Riccati, physicist and mathematician who worked on nonlinear differential equations.

Jacob Bernoulli (1645-1705), first of the great Bernoulli family to study mathematics and astronomy.

Robert Carpick, contemporary physicist who researches tribology, the study of friction.


LIBRARY

On reserve at the Jack R. Hunt Library are the following items:
Lectures on Physics, by Richard Feynman - a Nobel Prize winner deeply explains the why of physics.
Mechanics, by Keith Symon - another text at about the same level as Marion.
Classical Mechanics, by Herbert Goldstein - a graduate-level text for those who wish more detail.

(The following items are on reserve for my PS 103 course.  They can be, however, useful for you if you feel that you need some review.  Do not hesitate to read through them, if only to realize how far you have come in two years!)
Understanding Physics, by Isaac Asimov - a great science fiction writer explains physics.
Cartoon Guide to Physics, by Huffman - physical principles in a visual format.


HOMEWORK

Practice at problem solving is an important part of learning physics.  I suggest that you work as many problems as possible.  I will post solutions to most of the assigned homework problems.  


Information concerning plagiarism:

http://www.indiana.edu/~wts/wts/plagiarism.html
http://www.rbs2.com/plag.htm


Help on your technical writing style:

http://www.rbs0.com/tw.htm
http://www.rbs0.com/tw2.htm   (There are lots of links on this site)