Infinite series of cubes : Ratio 1 / Ö3
The yellow diagonal between two opposite vertices in the smallest red cube constitutes the edge of the middle blue cube .
Analogously the yellow diagonal in the middle blue cube constitutes the edge of the largest green cube. The yellow diagonal in the largest cube constitutes the edge of an imaginable even larger cube .The diagonal between two opposite vertices of a cube is the edge multiplied by Ö2. (For calculation of the diagonal see "The diagonal in a cube : Ratio 1 / Ö3)"
Such a series can continue in infinity.