“A Sally’s Motion” video

A Sally's Motion

A Sally’s Motion is a new video in the Miami Guild of Change Ringers YouTube channel (miamibells).  It shows the motion of the 4’s sally in slow motion, in graphs, and compared with the motions of the bell two floors above.  Originally made for new ringers, it has turned out to reveal interesting and (to me) unexpected things about how the sally moves and why.