681787.fig.0010a
(a)
681787.fig.0010b
(b)
Figure 10: Regions in the “clappering plane” for which a bell can ring (a) right and (b) wrong. Colour shading indicates the bell angle , in degrees, at which the first contact occurs between clapper and bell. The bell motion was initialised at angle . White symbols indicate the positions of the bells from Figure 9, three cases ringing right and one ringing wrong (see text).