These are movies of the open end of an old lathe. There are small marks near the edges of the gears so you can track their motion.

Right-click on the link and choose "Save Link As" to download a movie. Each of the following movies shows a different set of gears.

Technical Details

The movie was made while the author was visiting the Center for Science and Mathematics Teaching at Tufts University.

Primary Author and Contributors

  • Primary Author: Bob Teese


The files available for download on this page are licensed under a Creative Commons Attribution No-Derivative-Works Non-Commercial 3.0 License. You may distribute these materials to your students or use them for educational purposes in your classes, but other uses may require permission from the author(s).