Open Educational Resources (OER) are free and openly licensed educational materials that can be used for teaching, learning, research, and more. This Guide provides information on using OERs in your courses, tools to locate OERs by type and topic.
An online catalog of all the images from the classical technical reference Five Hundred and Seven Mechanical Movements by Henry T. Brown. The still images are public domain for any use. The updated animations are under copyright, but freely available online.