  The article studies the elastic and locomotive properties of Miura-ori-type
paper origami. The mechanics of a single paper crease is studied
experimentally, and its non-elastic properties turn out to be crucial. The
entire origami construction is then described as a collection of individual
creases, its capability to launch small objects is evaluated, and the equation
of motion is found. Thus, the height of the launched ball is studied
theoretically and experimentally as a function of governing parameters.
