Build Your Own Time Machine

we will explain Feynman’s approach in detail, and employ it to explore the idea that the universe itself has no single history, nor even an independent existence. That seems like a radical idea, even to many physicists. Indeed, like many notions in today’s science, it appears to violate common sense. But common sense is based upon everyday experien

A teoria da relatividade geral de Einstein parece oferecer a possibilidade de criar e manter buracos de minhoca, pequenos tubos que conectam diferentes regiões do espaço-tempo. Nesse caso, talvez sejamos capazes de usá-los para viajar rapidamente pela galáxia ou para voltar no tempo.