Space Documentary 2015 - Every BLACK HOLE Contains Another Universe?
Δημοσιεύτηκε στις 7 Αυγ 2015
A
black hole is a geometrically defined region of spacetime exhibiting
such strong gravitational effects that nothing—including particles and
electromagnetic radiation such as light—can escape from inside 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 crossing the event horizon has enormous effect on the fate of
the object crossing it, it appears to have no locally detectable
features. In many ways a black hole acts like an ideal black body, as it
reflects no light.[4][5] 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.
black hole is a geometrically defined region of spacetime exhibiting
such strong gravitational effects that nothing—including particles and
electromagnetic radiation such as light—can escape from inside 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 crossing the event horizon has enormous effect on the fate of
the object crossing it, it appears to have no locally detectable
features. In many ways a black hole acts like an ideal black body, as it
reflects no light.[4][5] 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.
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