. . "2"^^ . "A spherinder is a four-dimensional rotatope produced by the product of a line segment and a ball; this means that it is a prism with a ball as the base. It is composed of two balls and a curved 3-D surface, similar to how a 3-D cylinder is composed of two discs and a curved 2-D surface."@en . "A spherinder is a four-dimensional rotatope produced by the product of a line segment and a ball; this means that it is a prism with a ball as the base. It is composed of two balls and a curved 3-D surface, similar to how a 3-D cylinder is composed of two discs and a curved 2-D surface."@en . . . "2"^^ . "Spherinder"@en . . "1"^^ . . "4"^^ .