Welcome to Karl's web site. You can contact me here.
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Read A Gift from the Stars, an original science fiction novel.
An open letter on criminal justice reform.
What shapes can you make out of buckyballs?
Explore the wonderful world of polyominoes. I was the first to establish tilings for several of these interesting shapes.
A collection of fun and interesting facts from science, nature, history, sports, and current events. Please read through these Fun Facts, and then check in from time to time for something new.
A collection of interesting problems and puzzles in mathematics and logic for gifted high school students.
Solve and/or explore the Rubik's Cube, and other related permutation puzzles.
An homage to President Obama.
A resource for scrapbook designers, maintained by my wife Wendy. Contains titles, quotations, song lyrics, famous speeches - everything you need to put your page together - except the pictures of course, you supply those.
The MathReference project presents 1,400 pages of advanced mathematics in a manner that is accessible to both blind and sighted users. I am compiling much of this material into a book, which should be easier to follow than the aforementioned sea of disconnected web pages.
My own speech software for Linux, and a text based editor browser called edbrowse. Both these packages promote a command line philosophy, yet my speech software can also run in screen review mode if you prefer.
Play Calculation online, the most interesting version of solitaire.
Some stories and audio recordings of my grandparents and other relatives.
Some stories and audio recordings of Wendey's grandparents and other relatives.