When black holes disappear, what happens to the stuff that fell in? Physicist Brian Cox explains. Brian Cox explains the significance of black holes in the quest for a quantum theory of gravity and a deeper understanding of space and time. According to Cox, black holes are intriguing because they challenge the compatibility of quantum theory and general relativity, creating a fundamental clash in our understanding of nature. Unifying these two pillars of physics is a major goal for theoretical physicists, and black holes are crucial in this pursuit. He also delves into the characteristics of black holes, describing the event horizon as a boundary between the external universe and the interior of the black hole. In conclusion, he says, black holes play a pivotal role in our understanding of the universe, pushing scientists to explore the nature of space, time, and the fundamental laws of physics. They offer a glimpse into something deeply hidden, potentially leading to a profound shift in our comprehension of reality.

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chapters:-

0:00 introduction

1:29 the idea of black holes

2:54 what a black hole looks like

4:07 the singularity

5:42 hawking radiation

7:10 black hole information paradox

9:42 quatum theory of gravity

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