Post on 16-Jan-2016
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Kevin Huynh
Professor Gretchen Pratt
UWRT 1102–014
April 1, 2015
Want to go into a black hole?
How would you like to die? Would you like to die by being sucked into a black hole?
Personally, I think that would be kind of cool. You would be able to say "I went out in a star."
Only problem is that it is you would be able to tell the tale anyone and that it is painful. Just
imagine being pulled apart until there is nothing left of you.
What is a black hole? “A black hole is a place in space where gravity pulls so much that
even light can not get out. The gravity is so strong because matter has been squeezed into a tiny
space. This can happen when a star is dying” (Smith).
Death of a Star!
No not about a star that is a famous person but as in “a luminous ball of gas, mostly
hydrogen and helium, held together by its own gravity” (Temming). Out of the possibilities of
the death of a star, I thought that the formation of a black hole would be interesting. A black hole
is formed when the nuclear fuels are exhausted in the star’s core. “The outward pressure of the
radiation givers out and the pressure of gravity wins and the star implodes” (Cain).The thought
of how there is nothing in the center of it is a mystery.
History of a Black Hole
The idea of a black hole was first formed by the geologist John Mitchell. The theory that
he thought of was that if you could compress something large like our sun to a very small point,
the gravity would be so great nothing could escape it. Later Simon Pierre LaPlace predicted their
existence is possible somewhere in the universe. Albert Einstein Published the Theory of General
Relativity in 1915 which predicts space-time curvature. This supported black holes because the
space around black holes bend time and space. Subrahmanyan Chandrasekhar used the theory of
white dwarfs to understand the limits of if a star will become a white dwarf, neutron star, or a
black hole. The term ‘black hole’ was then coined by John Wheeler in 1964. Stephen Hawking
later defined the modern theory of black holes in 1970. In 1994, the Hubble Space Telescope
provided evidence of black hole in the center of some galaxies.
At a black hole, this is the place where the laws of physics break down. A black hole
bends time and space around it. A misconception of a black hole is that the center of a black
hole was a worm hole that can instantly transport you to a place in the universe. A worm hole,
which is only in theory, is also called a white hole being the opposite of a black hole, instead of
sucking things in, it expels things out. Another myth is that a black hole will consume everything
in the universe and destroy it eventually. The gravitational pull of a black hole will be the same.
Hypothetically speaking, if our Sun were to be replaced by a black hole with the same mass this
instant, we would still be rotation around the black hole as if it were the Sun (Black Hole Myths).
The culture of black holes today is very big. There are television shows and even movies
that reference it in some point. Some movies and television shows are: Doctor Who, Interstellar,
and Star Trek. Seeing how popular black holes are in our culture, I decided to look them up to
learn more about them.
VSauce?
I came across a YouTube account a long time ago named VSauce. Around the time of
early high school was when I found it. This YouTube account at first was a channel that talked
about things you can do on the internet. As of today, it has changed to an educational channel. I
had followed this YouTube account since then. I have learned a lot of information watching
these videos. The content always interested me because he would ask a strange question, then
use science and studies that relate to it to answer the question. I was tricked and was pulled into
the strange question and watched the video. One example of a video was “What color is a
Mirror?” The interesting question pulled me in. Then some videos he had put out about space
and this is what got me interested in space. “Travel INSIDE a black hole” and “What’s the
Brightest Thing in the Universe?” This is what led me to choose my topic about a star. So when I
had to choose my topic of death, I didn’t want to do it about a person but something else.
Don’t head towards the black hole.
Everyone has heard of the term “Don’t head towards the light” right? When a person
comes back to life after on the brink of death right? What if I told you there was an even brighter
place that you would not want to go? A black hole will eat up the gas and debris from the stars
and swirl into accretion disks. “In the disk, the debris spins at unfathomable speeds being pulled
by a black hole billions of times more massive than our Sun” (Stevens). I found that the accretion
disk creates so much friction that it generates heat. It is so hot that it is called a quasar. “Quasars
are so bright that they shine thousands of times more brightly than galaxies containing billions of
stars” (Stevens). When I heard this, I couldn’t imagine how bright this thing could be. “The first
quasar identified, 3C 273, had an absolute magnitude of -26.7, making it four trillion time
brighter than our Sun” (Stevens). Quasars being billions of light years away, they are one of the
oldest things in our universe. Since they are really old, they will probably most likely already be
gone because “what we see are just their ghosts. Light that left when they were active that
traveled longer than they could live” (Stevens). “The brightest places have the darkest, emptiest
skies… The brightest things in the universe, quasars, are caused by the darkest things in the
universe – black holes. The process that unshackles the most light is caused by the thing that best
imprisons it” (Stevens). When I heard this, I was mind blown. I just couldn’t believe that that
was the brightest thing in the universe.
I take something, make it nothing.
What does a black hole do? A black hole is an object in space with a density that is
infinite with a gravitational pull so great that not even light could escape it. Since nothing is
faster than the speed of light, nothing can escape from the black hole. If you were to head
towards a black hole, “that an observer standing and watching you jump into a black hole, would
see something quite strange. They wouldn’t see you get sucked quickly into the hole- instead,
they would see your approach become slower, and slower until you reach a point known as the
event-horizon. This is a point in space where, once crossed, there’s no going back. It is at that
point that light can no longer escape. And, so, to a person watching you fall into the hole that
would be where your journey ended. You would seem almost frozen in space, the light coming
off your body becoming increasingly red-shifted until you simply faded into nothingness”
(Stevens) I heard this and thought that it would be kind of weird to watch but wonder what the
person going into the black hole would experience. Would they also seem to feel slower? So then
he explains what the person going into the black hole would experience. “As you continue to
approach the black hole’s singularity, your view of the entire universe would get compressed
into a smaller and smaller point in space behind you… It might take us hours to actually reach a
point where things started to hurt. Why would they hurt? Well, the closer you get to the
singularity, the more significant the difference in gravitational pull across space. And, so, parts
of me that are closer to the singularity would be pulled more strongly than parts that were facing
away and my entire body would be stretched toward the singularity. The effect would be so
incredible, scientists don’t call it stretching, and they call it ‘Spaghettification.’ Once you reach
this point, you would be dead. Your molecules would be violently ripped and stretched apart, and
when they got to the singularity, well, we don’t really know what would happen” (Stevens). This
process sounded very painful. But I thought would be pretty cool how you would die by a black
hole. There would be nothing of you left in the universe. A black hole would take you and make
you completely disappear.
Would you want to dive into a black hole?
I personally might want to die in a black hole. Sure I don’t like pain, but I think it would
be cool. Dying to the point where there is nothing left for anyone to look back on. There might
be nothing left, but it would be a death where everyone would remember me by. I doubt there
will be something that would take me twenty-five thousand light years to our resident black hole
at the center of our galaxy, Sagittarius A*, so that I could dive into the black hole. One day,
someone might invent a way to travel that long in a span of one person’s life time. Until then, I’ll
stay here on Earth.
"Black Hole Myths." Black Hole Myths. N.p., n.d. Web. 31 Mar. 2015.
Cain, Fraser. "How Do Black Holes Form?" Universe Today. Fraser Cain, 27 Sept. 2013. Web.
24 Apr. 2015.
"HubbleSite - Reference Desk - FAQs." HubbleSite - Reference Desk. N.p., n.d. Web. 23 Feb.
2015.
Stevens, Michael. "Travel INSIDE a Black Hole." YouTube. YouTube, 6 Mar. 2012. Web. 01
Mar. 2015.
Stevens, Michael. "What's The Brightest Thing In the Universe?" YouTube. YouTube, 03 Feb.
2014. Web. 01 Mar. 2015.
Temming, Maria. "What Is a Star? - Sky & Telescope." Sky Telescope ICal. N.p., 15 July 2014.
Web. 31 Mar. 2015.
"The Black Hole at the Center of Our Galaxy: Don't Panic!" YouTube. YouTube, 23 Dec. 2014.
Web. 25 Mar. 2015
"What Happens Inside A Black Hole?" YouTube. YouTube, 26 Sept. 2014. Web. 03 Mar. 2015.