Archive for date: March 2, 2007

Compute the largest known prime, from a .signature file

March 2, 2007 | General | By: Mark VandeWettering

Okay, most of the ones of these I’ve written have been at least a little obscure or obfuscated. This one is entirely straightforward, and is further unremarkable because you need to have the gnu bignum library to make it work. Shrug. It’s still kind of fun, and it demonstrates just how straightforward the library is […]

Recreational Math: The Kruskal Count

March 2, 2007 | General | By: Mark VandeWettering

This is the kind of paper I read when I have a lunch hour by myself at the local sushi bar. [math/0110143] The Kruskal Count The Kruskal Count is a card trick invented by Martin J. Kruskal in which a magician “guesses” a card selected by a subject according to a certain counting procedure. With […]


March 2, 2007 | General | By: Mark VandeWettering

Through some convergence of factors (namely, my experience trying to read the accelerometers in the Wii remote, last night’s earthquake, and this mornings blear eyed checking of the Make Blog feed) I found the application below, which turns your Macbook or Macbook Pro into a seismograph by reading the accelerometer inside. I tried it on […]