mathmonday

A few weeks ago this column showed an assortment of small geometric structures made from beads by Horibe Kazunori. Well, anything which is cool at hold-in-your-hand size becomes extra cool...

Posted by Gareth Branwyn | Monday September 12th, 2011 12:00 PM

Categories: Craft, Science | 9 Comments

Math Monday: Math Candy

Eli Sohl created a blog called Math Candy, which shows mathematical ideas in the form of candy. Here's an illustration of how to approximate the area under a sine curve...

Posted by Gareth Branwyn | Monday August 29th, 2011 12:00 PM

Categories: Craft, Science | 3 Comments

Math Monday: Playing Cards

By George Hart for the Museum of Mathematics We looked at playing card constructions before in this column, but this one by Nick Sayers is impressively intricate. The 270 playing...

Posted by Gareth Branwyn | Monday August 15th, 2011 12:00 PM

Categories: Fun & Games, Science | 2 Comments

Math Monday: Make a Ball of Money

The diameters of US quarters and pennies are very close to the ratio needed to make a truncated icosahedron, i.e., a soccer ball in the US or a football elsewhere....

Posted by Gareth Branwyn | Monday August 8th, 2011 12:00 PM

Categories: Craft, Science | 24 Comments

By George Hart for the Museum of Mathematics Here is a wide variety of mathematical beadwork structures by Horibe Kazunori. Looking closely at one example, you can see how the...

Posted by Gareth Branwyn | Monday August 1st, 2011 12:00 PM

Categories: Craft, Science | 1 Comment

By folding a pleat in piece of fabric, you make one layer into three layers. By choosing the width and direction of many pleats, you can make geometric patterns. Chris...

Posted by Gareth Branwyn | Monday July 18th, 2011 12:00 PM

Categories: Craft, Science | 2 Comments

Math Monday: Coffee Stirrers

Nick Sayers enjoys making geometric constructions from unusual materials. Here's an organic-looking sculpture he made from 630 coffee stirrers, with "blobs" protruding in the twelve directions of a dodecahedron's faces.

Posted by Gareth Branwyn | Monday July 11th, 2011 12:00 PM

Math Monday: Star Sphericon

A sphericon is a shape that you get by: (1) rotating a symmetric polygon about a mirror axis to get a solid of revolution, (2) cutting the solid into two...

Posted by Gareth Branwyn | Monday June 27th, 2011 12:00 PM

Categories: 3D Printing, Science | 1 Comment

Math Monday: Knit or Crochet a Dodecahedron

By George Hart for the Museum of Mathematics If you knit, here’s a stuffed, dodecahedral thing—I don’t know quite what to call it—a toy, a pillow, a mathematical model? The...

Posted by Becky Stern | Monday June 20th, 2011 12:00 PM