Note: Do not rely on this information. It is very old.
Doublingthe Cube
Doubling the Cube, an ancient mathematical problem discussed by Greek geometricians. It practically means finding an expression for the length of the side of a cube that shall have twice the volume of another cube whose side is given. The solution of the problem cannot be obtained by use of straight lines and circles only, but may be effected by use of the conic sections or other special curves.