An example of a ferroelastic phase transition is when the crystal structure spontaneously changes from a tetragonal structure ( a square prism shape ) to a monoclinic structure ( a general parallelepiped ).
12.
Convective B�nard cells tend to approximate regular right hexagonal prisms, particularly in the absence of turbulence, although certain experimental conditions can result in the formation of regular right square prisms or spirals.
13.
Some texts may apply the term "'rectangular prism "'or "'square prism "'to both a right rectangular-sided prism and a right square-sided prism.
14.
It was similar in most general principles to Vaucanson's arrangement, except that he made use of Jean-Baptiste Falcon's individual paste board cards and his square prism ( or card'cylinder'), which he is credited with having fully perforated on each of its four sides in lieu of Vaucanson's perforated'barrel '.
