PyParticles is a particle simulation toolbox entirely written in Python. It simulates a particle-by-particle model with the most popular integrations methods, including Euler, Runge Kutta, and Midpoint. It represents the results on an OpenGL or Matplotlib plot, and offers an easy-to-use API.
Screencast makes it easy to produce high-quality screencasts on Linux with support for JACK Audio and updates in full detail. It is indispensable for recording video tutorials, video logs, and other computer activity, and works especially well with audio applications such as Pd, Ardour, and chuck. It is multi-threaded and produces smooth results with no jittery sound or loss of fine detail in screen updates.
schwinn810 allows you to extract data (tracks, laps, points, and waypoints) from a Schwinn 810 GPS sport watch with a heart rate monitor. It can optionally feed points to gpsbabel to convert data into other formats like TCX, GPX, and KML. A standalone converter for TCX with split-lap and heart rate data is provided. It should work on any platform as long as there is a driver for the CP2102 USB-UART bridge from SiLabs and python-serial.