Figures made of 24 Bar Magnets

Contents of this web page

Introduction top
When Alnico magnets came along years ago, I bought two
sets of 12 bar magnets enough for two cubes.
The bar magnets were one of my grandchildren's favourite
toy at all ages. Now they are older, and I asked some of them (8, 10, 13
years old) to build figures for my homepage. Conditions were, the figures
must be symmetric and all 24 bar magnets must be used. They did it with
much enthusiasm. I show their figures on this page as 3D
pictures, because they are more clearly visible that way.
3D
Figures made of 24 Bar Magnets top
So you must look at the following picture pairs with
the 3D view. You look "through" the pictures in a relaxed way until you
see three ones. The middle picture is threedimensional and can be viewed
at leisure.
01 Boat
02
03 Tetrahedron with centre lines
04
05
06
07
08
09
10
11
12
13 Prism
with centre lines
3D
Figures made of 12 Bar Magnets top
Plane
Figures made of 12 Bar Magnets top
What a pity. One ball is missing. But two cubes have
16 balls.
Here is the hexagon star made of 24 bar magnets.
My Addition top
Cuboctahedron
...... 
If the triangles are folded downwards and if the outer
bar magnets form rightangled triangles, the result is a wellknown Archimedean
solid, the cuboctahedron. 
This is the pair.
This raises the question of whether there
are more figures with 24 edges known by name. I have found five more.
Gyroelongated
square bipyramid (Johnson 17)
Triangular
orthobicupola (Johnson 27)
Truncated
tetrahedron with three face diagonals
Octagon
prism
Hexagonal
antiprism
Four
3D figures
Feedback: Email address on my main page
This
page is also available in German
URL of
my Homepage:
http://www.mathematischebasteleien.de/
©
August 2021 Jürgen Köller
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