| 摘要 |
<p>A world map system consists of thirty-two loose maps in the form of twelve equilateral pentagons and twenty inequilateral hexagons having alternately a relatively short side and a relatively long side. With these maps a globe can be formed by surrounding each pentagon with five hexagons in such a way that the sides of pentagons and hexagons abutting each other are the same length. The ratio of the length of the relatively long hexagon sides to the length of the relatively short hexagon sides lies between 1:0.75 and 1:1.</p> |
