Mathematics and OrigamiThe spatial figure tends to collapse into the plane XZ as seen in Fig. 6: all the circles
taking part in it appear surrounded by a new ellipse. The shortening of axis a requires an effort
similar to that needed to actuate against a compression spring.4
C ́ C
O✁^14
✁ ✁✁
✁
13
✁1211242117271523162226255
OBBCCAAXY21
1122