After giving our lunchtime talk in March, I learned that
Professor Lorenz's 90th birthday is coming up on
May 23, so I changed the first slide of the show to honor
Also during my talk, Bob Kraft asked a key question, which has led me to
re-think the thrust of what I said, and to add a slide at the end
that may explain why the Earth's atmosphere does not behave in
the manner implied in my talk.
This slide show is an experiment. I have never before given a
computer-based talk, and not owning or liking
PowerPoint (I'm a linux person), I looked for
other ways. This show
is made using Eric Meyer's “S5” (a Simple
Standards-based Slide Show System).
More information about S5 is available
I learned about it from
Akkana Peck, who is
a great resource. I was delighted to discover (by looking at
her website) that she is a UCSC alumna with a degree in mathematics.
She describes a number of alternatives to PowerPoint on her
Linux Presentations page.
Material related to this slide show is available
where you will find (a) a pair of files that may be used to
display a 3-dimensional rotatable plot of the Lorenz attractor
(“XYZplot.gplt”, and “XYZdata”), along
with instructions (“README.gnuplot”) for how to
display the plot using gnuplot, and (b) the
source code for a nice program that creates a Lorenz attractor
in an xterm window, and (c) additional source
code that may be used to create a MIDI file similar to that in
the slide show.
There is also a copy of an email from Professor Lorenz that
provides information about the creation of the “Lorenz