Next, rotate tetrahedron ...
Adjacent tetrahedrons ...
The "blue" tetrahedrons are rotated at the position of AA[1] and AA[-1] as shown on the left.
The "white" tetrahedrons at ends are also moved with the "blue" ones.
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Next, rotate tetrahedron ... Adjacent tetrahedrons ... The "blue" tetrahedrons are rotated at the position of AA[1] and AA[-1] as shown on the left. The "white" tetrahedrons at ends are also moved with the "blue" ones. |