# Browse Items (56 total)

- Collection: G4G14 Exchange Bag

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## I AM THE RHOMBUS

In one package: the strip of triangles and brochure for this new flexagon. The colorfully illustrated brochure will include folding directions, flexing directions, and images of the different possible faces.

**Tags:**
G4G14, Puzzle, Recreational Math

## StarHex-14: Theo Geerinck's 14 Polystars

14 tiles consisting of hexagons with 0 to 6 equilateral triangles attached on their edges can be cut from card stock provided to solve the large collection of puzzle figures presented. Five colors, each tile shape is unique with one mirror pair.…

**Tags:**
G4G14, Puzzle, Recreational Math

## The 14 Two-Color Frieze Symmetries in Mosaic Knitting

Mosaic knitting, a relatively new form of two-color knitting, has become popular because it is easier for the knitter than most traditional forms of color work. The price of this ease is an unusual set of restrictions on color placement for the…

**Tags:**
Art, G4G14, Recreational Math

## Golomb Rulers

A perfect ruler for daily use. In mathematics, a Golomb ruler is a set of marks at integer positions along a ruler such that no two pairs of marks are the same distance apart.

**Tags:**
G4G14, Recreational Math

## Flippe Top

This document describes how I designed a new kind of top, which flips not just once, but over and over. I call it a "flippe top". It can be made either from wood or by 3D printing.

**Tags:**
3D printed, G4G14, Toy

## G4G14 Exchange Gift (Martin Gardner Magic Trick)

We, on behalf of ThinkFun, would like to submit a physical gift based on a personal letter sent from Martin Gardner to one of our founders, Bill Ritchie, in 1994. We will submit photocopies of the letter, which describes how to perform the magic…

**Tags:**
G4G14, Legacy, Magic, Recreational Math

## Octaroller

BUILD your OCTAROLLER ! from 3 parts square.

RACE your OCTAROLLER ! down the ramp in a straight line.

CHEER your OCTAROLLER ! with supplied cheering pom pom on a toothpick.

Octaroller is included in Geometric Foundations of Design: Old and New…

RACE your OCTAROLLER ! down the ramp in a straight line.

CHEER your OCTAROLLER ! with supplied cheering pom pom on a toothpick.

Octaroller is included in Geometric Foundations of Design: Old and New…

**Tags:**
G4G14, Puzzle, Recreational Math

## Conway's Game of Life

Conway’s Game of Life needs no introduction to fans of Martin Gardner. Numerous examples exist in which a GoL “spaceship” object sends out smaller objects (“gliders”, etc.) that move away from the generator at a constant speed. That speed is set by…

**Tags:**
G4G14

## A G4G14 Puzzle

This is a paper ring with a number puzzle. The hint is actually the logo that is at the beginning (which of course will be right after the end when it's a ring).

**Tags:**
G4G14, Puzzle, Recreational Math