Spacecraft reaction wheels -- video or animation? I will be teaching a course at my local OLLI branch (a membership organization offering extended learning opportunities to older adults as well as social and recreational activities) on design of spacecraft. This is to be a fun course for these folks. Since these folks are non-technical, I am sprinkling my course with lots of videos, animations and pictures. I would love to find a video or animation that displays the working of reaction wheels for 3 axis spin stabilized spacecraft. This would greatly help me in explaining how these devices are used in spacecraft. Does anyone know of such a video or animation? Thank you.