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Mini-curso de Problemas Inversos
Nem sempre o mundo é regular ...
Planck time/length: t=10-43 secs. It is the shortest time interval that can exist; if two events are separated by less than this, we cannot say which comes before and which after. Prior to t=10-43 secs after the Big Bang, Einstein's General Relativity theory of gravity breaks down and a quantized theory is needed. Similarly, the related Planck length of 10-33 cm is the length scale below which space as we know it ceases to exist and becomes quantum foam.
Sucessivas ampliações de uma região do espaço. No nível
máximo de ampliação: espuma quântica! (de “O Universo
Elegante”, B. Greene, Compania Das Letras, 1999.)