Glass is not completely solid
Glass is neither crystalline nor amorphous, neither polycrystalline nor mixed. The theoretical name is glassy. The characteristics of the glassy state at room temperature are: short-range order, that is, in the range of several or dozens of atoms, the atoms are arranged in an orderly manner, present crystal characteristics, and the long-range disorder, that is, increase the number of atoms, becomes a kind of no The arrangement of the order, the degree of confusion is similar to the liquid. Macroscopically, glass is a solid substance.