By George Hart for the Museum of Mathematics

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Inexpensive light sticks can be held together with rubber bands to make glowing geometric structures. Here’s a construction based on the truncated dodecahedron, with a tetrahedron over each triangle. Assembling it is a fun group activity.

light stick construction1 Math Monday: Light Stick Construction

The design called for 170 light sticks, including the twenty which stick out from the tetrahedra.

light stick construction animation Math Monday: Light Stick Construction

It came out pretty much according to the plan, with some strings to suspend it from the ceiling.

See a brief Light Stick Construction video

More:
See all of George Hart’s Math Monday columns

Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of a dozen books on technology, DIY, and geek culture, including the first book about the web (Mosaic Quick Tour) and the Absolute Beginner’s Guide to Building Robots. He is currently working on a best-of collection of his writing, called Borg Like Me.


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