#### Catastrophe

##### "Science begets knowledge, opinion ignorance.

Spacetime

which represents a particle's progress through spacetime. That line is called the particle's world line. Mathematically, spacetime is a manifold, which

192 KB (27,044 words) - 02:13, 16 July 2021

- String theory (category Particle physics)

a black hole is defined as a region of spacetime in which the gravitational field is so strong that no particle or radiation can escape. In the currently

121 KB (15,177 words) - 18:02, 8 July 2021

- Quantum gravity (redirect from Spacetime background)

causality, the measurable spacetime around a spin-half particle's (rest frame) must be spherically symmetric - i.e., either spacetime is spherically symmetric

44 KB (5,157 words) - 15:22, 13 July 2021

- Wormhole (redirect from Spacetime shortcut)

past for any possible trajectory of a free-falling particle (following a geodesic in the spacetime). In order to satisfy this requirement, it turns out

54 KB (6,675 words) - 23:16, 16 July 2021

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