- Sudoku Template (34k jpg file)
I'm sure this never happens to you, but I occasionally screw one up so badly there's no alternative but to start over on a clean grid. This is an empty grid, writ large for our aging eyes.

- Selected Readings
mp3 recordings of my feeble attempts to imitate the talented readers on

*Selected Shorts* - Why Can't I divide by zero, a brief essay in
pdf format.
This question has come up so often I finally decided to try to write down a definitive answer.

- If the Moon is Green Cheese, then I'm a Monkey's Uncle essay in pdf format.
People are suprised by some aspects of the logical implication connective. This essay discusses the nature of implication and attempts to dispel some of the confusion about it.

- My definition of recursion.
- You are in a maze full of ...
- A remark on average velocity.
A brief mathematical note arising from a question asked by a student during my visit to Corning West High School for Syracuse University Project Advance.

- Harvesting the Moon's Eccentricity, a brief technical note
There is huge source of free energy awaiting those clever enough to figure out how to grab it. It amounts to about 1000 years at current levels of usage. The rotation of the earth turns out to be a major headache.

- An expository paper showing the details of how to derive the second order
correction to the period of a plane pendulum using both time dependent and
time independent perturbation theory.

- A paper on the cones and cylinders associated with
Keplerian orbits. There is probably nothing new here, but I wrote this to make
these facts more accessible, particularly for me.

- A brief note that discusses divergent series
whose terms can be grouped so as to converge to any desired sum. It is
an "associative law" version of Riemann's theorem on rearrangements.

- A paper that provides a proof of the theorem
from folklore that the one sided Z test is more powerful than the 2-sided Z test
- A research paper on estimating density in a point process.
From the abstract: We consider estimating the density of points in a point process by a count of the number of points in a unit volume, and the bias that results when the volume is centered at a point of the point process rather than at a randomly selected location.

- A haiku, on haikus
Tricky little form!

Seven syllables are fine

But five are too few. - The Beaufort Scale
I don't know why, but I've always loved the Beaufort Scale. Perhaps it's because I've always been a weather watcher and a kite flyer. This is the landlubber's version, not the original nautical version.

- A Quine, or "computer virus" propagatable by
people who always follow directions.
- The sad story of my life: I've come to view stress as the great enemy of my health. In an effort to combat it, I signed up for a transcendental meditation course, but have become increasingly distressed over my lack of progress in this discipline.
- My Unblog My suggestion is that you ignore it.