| 摘要 |
The invention relates to a geometric construction toy for building geometrical structures and consists of a multiplicity of spherical magnetizable bodies which may be magnetically coupled to a connecting member. The connecting member has an upper boundary surface which is a concave surface of revolution and a lower boundary surface which is also a concave surface of revolution. The lower boundary surface is the mirror image of the upper boundary surface. A permanent magnet is captively carried by the connecting member and so disposed therein such that the poles of the magnet are located adjacent to or interiorly of the respective boundary surface thereby permitting a stable coupling of magnetizable bodies to each pole of the permanent magnet.
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