Rajaa
Hakutulokset: 9048125022
Rajaa
yksi hakutulos.
Serious Fun with Flexagons
sidottu,
2009,
englanti,
ISBN 9789048125029
A flexagon is a motion structure that has the appearance of a ring of hinged polygons. It can be flexed to display different pairs of faces, usually in cyclic order. Flexagons can …