A spherical construction toy includes six segments consisting of a single outer convex surface and four inner concave surfaces, twelve segments consisting of a single outer convex surface, two inner convex surfaces, and two inner concave surfaces; and eight segments consisting of a single, outer convex surface and three inner convex surfaces. The segments are defined by the intersection of spherical surfaces having identical radius and disposed along Cartesian coordinate axes with the surface at the common center. The segments, when assembled in a base configuration with the outer surfaces disposed away from the common center, form a spherical assembly.

The invention generally relates to multi-dimensional puzzles for teaching, entertainment, and construction. One embodiment of the invention comprises two forms, one planar and one non-planar, which comprise a plurality of protrusions and recesses. These forms may be assembled by selectively interconnecting the various protrusions and recesses to create multi-dimensional shapes such as a cube, cylinder, and sphere among many other possibilities.

An apparatus, system, and method are disclosed for building a structure that includes a substantially triangular cross-sectional shape having an outside face opposing an inside face. The outside face is connected to the inside face by a first wall, a second wall, and a third wall. Each wall includes a first projection has an outer surface that is continuous with the outside face, a first recess that is positioned opposite and extends away from the first projection, a second projection that has an inner surface that is continuous with the inside face, a second recess that is positioned opposite and extends away from the second projection, and a coupling projection. The coupling projection is positioned opposite at least one of the first recess and the second recess.

The invention generally relates to multi-dimensional puzzles for teaching, entertainment, and construction. One embodiment of the invention comprises two forms, one planar and one non-planar, which comprise a plurality of protrusions and recesses. These forms may be assembled by selectively interconnecting the various protrusions and recesses to create multi-dimensional shapes such as a cube, cylinder, and sphere among many other possibilities.

A exercise device, for example, and exercise ball device. The exercise device includes a frame and at least one panel or multiple panels.

A toy brick system is provided which is configured for forming globe shaped structures. The system includes individual brick sections which engage in layers. The layers are configured for stacking upon adjacent formed layers to form a globe or sphere. The exterior surfaces of the brick sections may have portions of a graphic depiction thereon to configure the globe to a jigsaw puzzle.

A multi-component structure comprising complementary segments and the multi-component structure comprises a first complementary segment having a first convex portion and a first concave portion. The first convex portion is contiguous with the first concave portion. The multi-component structure further comprises a second complementary segment and a second convex portion, the second concave portion being contiguous with the second convex portion, the second concave portion sized to be received within the first convex portion and the second convex portion that is sized to be received within the first concave portion. When the first complementary segment and the second complementary segment are releasably secured to one another, the two segments form a first hemisphere.

Disclosed is a spherical tiling puzzle which is formed by combining a plurality of spherical tiles. The spherical tiles are each provided with a spherical regular polygon as a basic design element. The plurality of spherical regular polygon tiles constituting a spherical puzzle have same number of sides or different numbers of sides, the plurality of spherical regular polygon tiles are configured to be spliced into the hollow spherical puzzle according to surface layouts of five regular polyhedrons or thirteen Archimedean solids, and the spherical tiles provided through deformation of the spherical regular polygons as the basic design elements have various outer contour shapes, including but not limited to polygon-like, animal-like and human-like outer contour shapes.