A Journey around the Milky Way
Matt Ginnow, Matthew Ginnow, #mattginnow, #matthewginnow
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Black Hole
https://en.wikipedia.org/wiki/Black_hole Matthew Ginnow, Matt Ginnow A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light —can escape from it. [1] The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. [2] [3] 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, according to general relativity it has no locally detectable features. [4] In many ways, a black hole acts like an ideal black body , as it reflects no light. [5] [6] 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 billionth...
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