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| 2004-05-07 |
Corrected "Geometric Toy/Oloid" page.In case of "Oloid",the distance of two centers of disk is equal to the radius.
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| 2003-12-26 |
Added a Indian Ball page to "Geometric toy", a Tensegrity page and a Hoberman Sphere page to "Polyhedral toy". |
| 2003-12-22 |
Added a Popup Spinner page to "Geometric toy", a Yoshimoto Cube page to "Polyhedral toy". |
| 2003-12-19 |
Added a Toroflux page to "Geometric toy", a MOVE FORM page to "Polyhedral toy". |
| 2003-12-14 |
Added a Ring of tetrahedrons page to "Geometric toy", a Juno's Spinner page to "Polyhedral toy". |
| 2003-11-30 |
Added a Origami Spring page to "Geometric toy", a IKOSTAR & Tomagari-Natto page to "Polyhedral toy". |
| 2003-11-28 |
Added a Oloid page to "Geometric toy", a Star Cage #5 page to "Polyhedral toy". |
| 2003-11-23 |
Added a Flexible hyperboloid page to "Geometric toy", a Flip-Flop Ball page to "Polyhedral toy". |
| 2003-11-16 |
Added Tile Magic-1,-2,-3,-4,-5,-6,-7,-8 pages to "Geometric toy", a Reversible Polyhedron page to "Polyhedral toy". |
| 2003-11-09 |
Added a Magic Ring page to "Geometric toy", a TOM CUBE page to "Polyhedral toy". |
| 2003-10-26 |
Up load English version. |
| 2002-03-21 | Put up this web site in Japanese language.
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