Black Holes Documentary 2018

>>>>>>Black Holes Documentary 2018

Black Holes Documentary 2018

A black hole is a region of spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of the region from which no escape is possible is called the event horizon. Although the event horizon has an enormous effect on the fate and circumstances of an object crossing it, no locally detectable features appear to be observed. In many ways a black hole acts like an ideal black body, as it reflects no light. Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe.


By | 2018-02-01T19:46:05+00:00 January 31st, 2018|Categories: Atividades de Inglês, Documentaries|

About the Author:

Cursos de Inglês como Segundo Idioma [ESL] para pessoas interessadas em dominar o idioma em tempo recorde e de forma definitiva. Através de ferramentas tecnológicas de ponta e conteúdo intensivo, a MSR Maestro auxilia todos no domínio do idioma Inglês.