Black Holes Essay, Research Paper
Black Holes
Everyday we look out upon the night sky, wondering and dreaming of
what lies beyond our planet. The universe that we live in is so
diverse and unique, and it interests us to learn about all the
variance that lies beyond our grasp. Within this marvel of wonders
our universe holds a mystery that is very difficult to understand
because of the complications that arise when trying to examine and
explore the principles of space. That mystery happens to be that of
the ever clandestine, black hole.
This essay will hopefully give you the knowledge and understanding
of the concepts, properties, and processes involved with the space
phenomenon of the black hole. It will describe how a black hole is
generally formed, how it functions, and the effects it has on the
universe.
In order to understand what exactly a black hole is, we must first
take a look at the basis for the cause of a black hole. All black
holes are formed from the gravitational collapse of a star, usually
having a great, massive, core. A star is created when huge,
gigantic, gas clouds bind together due to attractive forces and
form a hot core, combined from all the energy of the two gas
clouds. This energy produced is so great when it first collides,
that a nuclear reaction occurs and the gases within the star start
to burn continuously. The Hydrogen gas is usually the first type of
gas consumed in a star and then other gas elements such as Carbon,
Oxygen, and Helium are consumed.
This chain reaction fuels the star for millions or billions of
years depending upon the amount of gases there are.
The star manages to avoid collapsing at this point because of the
equilibrium achieved by itself. The gravitational pull from the
core of the star is equal to the gravitational pull of the gases
forming a type of orbit, however when this equality is broken the
star can go into several different stages.
Usually if the star is small in mass, most of the gases will be
consumed while some of it escapes. This occurs because there is not
a tremendous gravitational pull upon those gases and therefore the
star weakens and becomes smaller. It is then referred to as a White
Dwarf. If the star was to have a larger mass however, then it may
possibly Supernova, meaning that the nuclear fusion within the star
simply goes out of control causing the star to explode. After
exploding a fraction of the star is usually left (if it has not
turned into pure gas) and that fraction of the star is known as a
neutron star.
A black hole is one of the last option that a star may take. If the
core of the star is so massive (approximately 6-8 solar masses; one
solar mass being equal to the sun’s mass) then it is most likely
that when the star’s gases are almost consumed those gases will
collapse inward, forced into the core by the gravitational force
laid upon them.
After a black hole is created, the gravitational force continues to
pull in space debris and other type of matters to help add to the
mass of the core, making the hole stronger and more powerful.
Most black holes tend to be in a consistent spinning motion. This
motion absorbs various matter and spins it within the ring (known
as the Event Horizon) that is formed around the black hole. The
matter keeps within the Event Horizon until it has spun into the
centre where it is concentrated within the core adding to the mass.
Such spinning black holes are known as Kerr Black Holes.
Most black holes orbit around stars due to the fact that they once
were a star, and this may cause some problems for the neighboring
stars.
If a black hole gets powerful enough it may actually pull a
star into it and disrupt the orbit of many other stars. The black
hole could then grow even stronger (from the star’s mass) as to
possibly absorb another.
When a black hole absorbs a star, the star is first pulled into the
Ergosphere, which sweeps all the matter into the Event Horizon,
named for it’s flat horizontal appearance and because this happens
to be the place where mostly all the action within the black hole
occurs. When the star is passed on into the Event Horizon the light
that the star endures is bent within the current and therefore
cannot be seen in space. At this exact point in time, high amounts
of radiation are given off, that with the proper equipment can be
detected and seen as an image of a black hole. Through this
technique astronomers now believe that they have found a black hole
known as Cygnus X1. This supposed black hole has a huge star
orbiting around it, therefore we assume there must be a black hole
that it is in orbit with.
The first scientists to really take an in depth look at black holes
and the collapsing of stars, were a professor, Robert Oppenheimer
and his student Hartland Snyder, in the early nineteen hundreds.
They concluded on the basis of Einstein’s theory of relativity that
if the speed of light was the utmost speed over any massive object,
then nothing could escape a black hole once in it’s clutches.
The name “black hole” was named such, because of the fact that
light could not escape from the gravitational pull from the core,
thus making the black hole impossible for humans to see without
using technological advancements for measuring such things like
radiation. The second part of the word was named “hole” due to the
fact that the actual hole, is where everything is absorbed and
where the centre core presides. This core is the main part of the
black hole where the mass is concentrated and appears purely black
on all readings even through the use of radiation detection
devices.
Just recently a major discovery was found with the help of a device
known as The Hubble Telescope. This telescope has just recently
found what many astronomers believe to be a black hole, after being
focused on an star orbiting empty space. Several picture were sent
back to Earth from the telescope showing many computer enhanced
pictures of various radiation fluctuations and other diverse types
of readings that could be read from the area in which the black
hole is suspected to be in.
Several diagrams were made showing how astronomers believe that if
somehow you were to survive through the centre of the black hole
that there would be enough gravitational force to possible warp you
to another end in the universe or possibly to another universe. The
creative ideas that can be hypothesized from this discovery are
endless.
Although our universe is filled with much unexplained, glorious,
phenomenon, it is our duty to continue exploring them and to
continue learning, but in the process we must not take any of it
for granted.
As you have read, black holes are a major topic within our universe
and they contain so much curiosity that they could possibly hold
unlimited uses. Black holes are a sensation that astronomers are
still very puzzled with. It seems that as we get closer to solving
their existence and functions, we just end up with more and more
questions.
Although these questions just lead us into more and more unanswered
problems we seek and find refuge into them, dreaming that maybe one
day, one far off distant day, we will understand all the
conceptions and we will be able to use the universe to our
advantage and go where only our dreams could take us.
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