Who is John P. Pratt?

John Pratt
Dr. John P. Pratt
I love puzzles, science, math, calendars, and enjoy connecting ideas from a wide varienty of disciplines. I have degrees in physics and math from the U. of Utah, and a Ph.D. in astronomy from the U. of Arizona. I taught astronomy at a state college and keep notes for that class on this web site. I also do computer programming, have three software patents, and host a few websites (and a page for my brother's very inexpensive and energy efficient homes). For sports, I used to run a table tennis club.

Most of my publications have been about chronology, so you probably don't want to read them. I have written a calendar conversion spreadsheet to convert from our calendar to others.

I invented a pictorial periodic table which I hope might make chemistry more fun and can be used as memory pegs for memorizing long lists of other items too.

If you like tough brain teasers, I think I have found a great logic puzzle in the Bible which you might want to try.

There is a brief life sketch of me and of some of our family ancestors in the genealogy section of these pages.

Here is a link to our family photo which was the last where the entire family got together. They are now spread out all over the country.