BS ('85) Iowa State; MS ('94), PhD ('95) Oregon State
Current Weekly Schedule
Tuesday & Thursday 8-9:50 Physics 101; 10-11:50 Physics 320
Tuesday 7:10 PM - 9:00 Pm Physics 101
Did you want to peruse my CV? It is complete, including my stint as a butcher's assistant.
There is nothing that I enjoy more than the teaching of science. The best way to learn science is by doing science, and I actively support student-centered research projects. Some of the more interesting ones include low pressure flame studies and pattern formation in fluid dynamics. As the academic director for the U.S. Physics team, I am responsible for the selection and training of the top high school physics students in the United States in order for them to compete in the International Physics Olympiad.
I am working with students to rebuild the 500 keV Van De Graff accelerator.
I'm still developing techniques for finding Lyapunov exponents for Hamiltonian systems without numerical integration of the equations of motion. Progress has been made in this area, and I hope to have more results made public soon.
Some exciting results:
- An analytic technique, similar to the Toda-Brunner criteria, for determining an upper limit on the maximal Lyapunov exponent, is under development.
- Evidence exists that shows the Lyapunov exponent can, under some fairly strict conditions, be a smooth function of a coupling parameter. The abstract of this work is available from an APS meeting.
- It appears possible to express the maximal Lyapunov exponent of an ergodic region as a weighted average of the characteristic exponents of the isolated periodic orbits in the region. I'm arguing with a referee over this issue.
- I have been working on developing a quantum Lyapunov exponent which would share definition consequences with the classical exponent. I presented some of my results at a talk in Korea.
- I have done work on developing a parallel computation platform for finding Lyapunov exponents. The platform consists of a PVM or Beowulf type cluster. The code will be available here soon; as well as a CD-ROM image so that you can build your own cluster with a minimum of stress!
Why did it take me nine years to get a master's degree? It didn't! After getting my degree from Iowa State, I spent a few months in Tennessee working with the Appalachian Service Project. Then, I joined the Peace Corps, and spent the next seven years deep in the South Pacific as a high school teacher.
Try my Fijian or Gilbertese pages, but only if you speak the language! My German is pretty poor, although I did correspond in German via e-mail with a friend for a while and I have read the first three Harry Potter books in German. I can (barely) read and write Mandarin, and I learned Hangul for a recent trip to Korea. If I get around to it, I might put up a page in Vietnamese, Hindustani, Urdu, Tongan, or Rotuman. I love foreign languages. I wish they loved me. Needless to say, I travel quite a bit.
In my spare time, I play the trumpet. When I'm rich, I'll get a Monette like the one shown at left, but I recently discovered Scodwell Trumpets, and I am now the proud owner of one of his Vega models. I also play on some old Bach Trumpets. Do you play a Bach? Here is a list of serial numbers so you can find out how old your trumpet is.