Editing Singularity (section)

===Natural sciences===
* [[Singularity (system theory)]], in dynamical and social systems, a context in which a small change can cause a large effect
* [[Gravitational singularity]], in general relativity, a point in which gravity is so intense that spacetime itself becomes ill-defined
** [[Initial singularity]], a hypothesized singularity of infinite density before quantum fluctuations caused the Big Bang and subsequent inflation that created the Universe
* [[Penrose–Hawking singularity theorems]], in general relativity theory, theorems about how gravitation produces singularities such as in black holes
* [[Prandtl–Glauert singularity]], the point at which a sudden drop in air pressure occurs
* [[Singularity (climate)]], a weather phenomenon associated with a specific calendar date
* [[Van Hove singularity]] in the density of states of a material