The Magic Shop offers a wide range of original dice, some geometrical jewelry and a few strange objects.
The dice are from different families like the Average Dice where you must sum the numbers appearing on the top face,
the Truncated Sphere Dice, intersection of a polyhedron with a sphere and some other original creations.
The jewelry includes Double Marble Pendant, Dod Earrings and Dod Pendants, Reversible Bracelets
as well as some unusual rings. Finally, some objects are difficult to classify, for example the Hexbox,
the Cup Holder or the MegaWireSphere.
This is a dissection puzzle that illustrate the Pythagorean theorems: the sum of the areas of the 2 smaller squares is equal to the area of the biggest one. You can discover that by playing with this puzzle. Small version (6.5 cm, walls are 2 mm). SUCCESSFULLY PRINTED. More informations in this post.
A small version of the Brunnian Circles to be printed in Stainless Steel as a pendant.
The diameter of the threads is 2 mm. The clearance between the rings is only 0.5 mm, which is enough for Transparent Detail.
These are 3 interlocked links. Brunnian means that even though the 3 ellipses are interlocked, no two of them are linked (in other words, remove just one ellipse and the two other ones will fall apart). They stand in 3 perpendicular plans and measure 3.5cm.
More informations here: http://www.shapeways.com/forum/index.php?t=msg&goto=6482#msg_6482
The Brunnian Circles are made of 3 interlocked rings. Brunnian means that even though the 3 circles are interlocked, no two of them are linked (in other words, remove just one of them and the two other ones will fall apart).
The red circle in on top of the blue one, the blue one on top of the green one and the paradox is that the green circle is on top of the red one. This is possible because they are pseudo-circles: in reality they do not stand in a plane but are "waved".
Their diameter is 4cm and they thickness 5mm.
SUCCESSFULLY PRINTED. More informatons in this post.
Space Filling Polyhedra A regular dodecahedron and this other unusual polyhedron (that I call "Anti-Dodecahedron" but George W. Hart call it "Concave Dodecahdron") can fill the space (use the same proportion of each ones). If you take into account their respective volumes, this means that dodecahdron alone can be close-packed with an efficiency ratio of more than 90.43% (which is not too bad, knowing that for spheres the maximum is supposed to be less than 74.05%).
This set contains only two ployhedra: one dodecaheron and one anti-dodecahedron. Order it several times to fill the whole space... :)
A large colored wireframe model that shows a Triacontahedron that includes a dodecahedron and an icosahedron.
It can be used to calculate the volume or the triacontahedron.
Using as only information that the diagonal of a pentagon whose side is a has a diagonal of size φa you can prove that the volume of the triacontaheron is 5/2.b.b.b where b is the large diagonal of the rhombus (the blue segment).
The Magic Shop offers a wide range of objects often related to Mathematics or Geometry.