¶ Cube: Diagonal of a Cube as Wave Propagation Model (1)
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Cross Reference
Wave action is illustrated by M “a steel cube mounted on a frame with a diagonal axis running from one corner of the cube to an opposite corner. (See Illustration # 64.) . . . We see the triangle rotate . . . in such a manner that it goes from being congruent with the positive tetrahedron” of the cube" to being congruent with “the negative tetrahedron” of the cube. . . With an oscillating system . . we find that each one of the little triangles rotates as if it were swelling locally. There is a lag in it . . . exactly like our dropping the stone into the water and getting a planar pattern for a wave but in this one we get an omnidirectional wave. We can see the electromagnetic wave pattern as clearly demonstrated by one energy action in the system. This is the first time I think a man has been able to have a conceptual picture of a local disturbance. We must remember that in the local water where we drop the stone the molecules run inwardly and outwardly towards the center of the earth gravitationally; the water does not move. It accommodates a wave moving through it. We see that a wave is a pure principle accommodated locally to be broadcast.
