| 摘要 |
Ball, mechanical puzzle with each to other ingrooved parts, belongs to technical solutions for amusement intended for development of a sense of complex combinations sense. It consists from a central circular part whereto are leaned slindingly movable parts: pentagonal (2), rhombic (3) and triangle ones (4). All the parts are coupled each to other by means of the separate grooves (5). Parts may make for larger movable whole parts (rings – composed from rhombical and triangular parts and calotes – composed from pentagonal, rhombical and traingular parts). Thus we may bring all the parts into a lot of various each to other positions, which due to various marks of the field may form various graphical whole parts on the surface. |
