Doubling the cube given length times . In music theory, a natural analogue of doubling is the octave (a musical interval caused by doubling the frequency of a tone), and a natural analogue of a cube is three repetitions of the same interval. In this sense, the problem of doubling the cube is solved by the major third in equal temperament. This is a musical interval that is exactly one third of an octave. It multiplies the frequency of a tone by , the side length of the Delian cube. Doubling the cube Doubling the cube, also known as the Delian problem, is
Cosmic Cube the trio invaded a KubeKult base to steal the erratically functioning Cube but the Red Skull seized it and willed Captain America to be drawn inside it into an artificial reality during World War II, where Captain America and Bucky were on a mission to kill Hitler. The Red Skull believed that he would be able to wield the Cube's power only if Captain America killed Hitler's consciousness within the Cube. However, the Bucky within the Cube (actually a projection of Cap's own mind) revealed what was really going on and Captain America was able to will himself out of