Jouko Koskinen

exhibition director (retired)
Heureka, the Finnish Science Centre
Helsinki, Finland
Tensegrity cube & tetrahedron by four rods

The rods are placed as diagonals of a cube. They are bent into arcs and therefore do not connect with each other.
The edges of the cube are formed by the red thread connecting the eight ends of the rods to each neighbouring end.
The bent rods are positioned in such a way that the midpoints of the arcs are equidistant from each other.
The other red thread, which connects the midpoints of the arcs, forms the edges of a tetrahedron.
The white thread ensures the rigidity of the square faces of the cube.
It could be possible to build a similar tensegrity structure using six bent rods to create a tensegrity structure consisting of an icosahedron and an octahedron.
Tensegrity cube & tetrahedron by four rods
60 x 60 x 60 cm
fibreglass rods ø 3 mm, plaited fishing lines
2021
Tensegrity cube & tetrahedron by four rods

The rods are placed as diagonals of a cube. They are bent into arcs and therefore do not connect with each other.
The edges of the cube are formed by the red thread connecting the eight ends of the rods to each neighbouring end.
The bent rods are positioned in such a way that the midpoints of the arcs are equidistant from each other.
The other red thread, which connects the midpoints of the arcs, forms the edges of a tetrahedron.
The white thread ensures the rigidity of the square faces of the cube.
It could be possible to build a similar tensegrity structure using six bent rods to create a tensegrity structure consisting of an icosahedron and an octahedron.