ocr: BIG BANG A - generally accepted model for the forma- tion of the universe. According to it, the uni- verse was originally in an infinitesimally small and dense state, a state where density and curvature are close to infinity (zero in volume and infinite in temperature). Entropy in the universe was zero and the concept of time was not yet valid. Such a state of singu- larity widened very fast generally verb The big bang is often described as on explode' is used) producing particles and expanding bubble, as shown in this antiparticles. figure. However, this is incorrect in the After the beginnin ...
