2010 Bridges Conference

Bjarne Jespersen


Bjarne Jespersen


Naested, Denmark




I use creative geometry to bring new life to old traditions of "magic woodcarving", i.e. the art of carving a piece of wood into parts that are loose, but cannot be separated. Traditional examples are wooden chains and balls in cages, as seen in such items as Welsh love spoons and European wool winders.


Image for entry 'Great Tetraknot'

Great Tetraknot

95 x 95 x 95 mm

Wood (elm)


A compound of four trefoil knots oriented as the faces of a tetrahedron. Its symmetry is that of the tetrahedron, but without mirror reflections.
Image for entry 'Memento mori'

Memento mori

50 x 50 x 71 mm

Wood (briar)


The traditional ball in cage theme is combined with a classical motif from renaissance art and inspiration from Japanese netsuke carvings. The cage is a rhombic dodecahedral edge frame.
Image for entry 'Double Star'

Double Star

45 x 45 x 45 mm

Wood (pear)


Two cubic edge frames are tied together with a half twist to each pair of edges, then reshaped to resemble Keplar's Stelle Octangula, the well known compound of two regular tetrahedra.