Imagine a mystical, invisible influential power, pulling our galaxy far, far away from where it should be. Imagine the milky way being pulled millions and millions of km away. The planets pulled far apart from each other. This would ensure a certain demise of current life forms, forever changing our world. This is the effect of dark flow. Fortunately this appears to be occurring in distant galaxies, however observations have concluding our galaxy is too being pulled away in a specific direction. This highlights the essentiality of more research being conducted upon this unexplained force.
Good Morning class, today my chosen topic is the term dark flow.
Now dark flow is a basically a term used to explain astronomical observations, that appear to show certain areas of space accelerating and expanding at a rate that is abnormal in comparison to surrounding regions and the expectation of the acceleration rate that is formed from the basis of laws, rules and models.
However,these observations have profound controversy in the scientific arena, many scientists refuting the evidence.
Today we shall look upon both arguments for and against dark flow.
Firstly we shall look upon the formula that shows how acceleration is 'supposed' to occur.
Regarding the laws of physics, relative gravity should be able to explain how the galaxies are moving. Relative gravity involves the force of gravitational energy as a universal law. As Alok Jha states, "It encapsulates the idea that all the particles of matter in the universe attract each other through the force of gravity" (Jha, 2013). In other words, gravitational attraction extends to planets attracting each other, not having the ability to move without an outwards force being applied. Th...
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...scientific team (Roach 2012). Turnbull’s team evaluated over 245 Supernovae stars, using various mathematical formulas. The conclusion found that the stars were travelling at approximately 245 kilometres per hour in a certain direction, although the some minor details of what was being measured remained different, like the degree of change regarding motion. Additionally, athour details may make this a weak comparison, as Kaslinsky’s dark flow is moving approximately 4 times faster, running in a unique direction and extending further then Turnbull’s team.
In conclusion, this theory remains vastly researched, the data portraying urgent need for this conduction. In the near future, hopefully we are able to find whether dark flow does or doesn’t exist definitely as it will certainly raise many topics for discussion, renewing our views on certain astrological aspects.
Perkins, Ceri. "Dark Lightning Sheds Light on Gamma-ray Mystery." physicsworld.com. N.p., 17 Apr. 2013. Web. 7 Apr. 2014.
Two men named Harlow Shapley and Heber Curtis has a debate in 1920 that is still important today for changing how we think about galaxies. They talked about five important things. The first thing they debated was how big our galaxy, the Milky Way, is. Shapley said that the Milky Way was much bigger than we first thought, 100,000 light-years across, and that, because it was that big, it had to be the only one. Curtis said the the Milky Way was smaller than that, and that other galaxies existed past ours. They were both right and both wrong. Shapley was right about the size of the Milky Way, and Curtis was right about there being many more galaxies in the universe.
The use of light and dark motifs by Mulisch explains many reactions of Anton when encountered with problems of his past. Perception of darkness Anton Steinwijk, the main character, experiences such assault by soldiers during the Occupation and his family being shot by them. His desire to leave what has happened to him in the past has been influenced thoroughly by some of the people he encounters as well as the trauma. Light and darkness symbolizes Anton's sense perception as well as moral issues conveyed by people he met, which influences him observing the war and his past years of life, and the desire to leave the past behind and move on.
The two astronomers found many patterns after developing their graph. They found that 90% of stars graphed fell within a band that ran through the middle of the graph. These stars range from cool, dim, red stars at the lower right of the H-R Diagram to hot, bright, blue stars at the upper left corner of the H-R Diagram. The stars that fall into to this band are known as main-sequence stars. Stars such as the sun, and almost every start visible in the night sky fall within this band of main sequence stars. There is another group of stars which are cool and bright that appear near the upper right corner of the H-R Diagram.
In the visible universe, there is one type of event that is often responsible for a good deal of the varied phenomena we observe across the cosmos. A type of event whose effects are both destructive and creative. This event is the interaction of two or more galaxies. The results of a galactic interaction are so varied that each event is unique. Therefore, only a select few examples will be described in the following pages.
We can also prove that dark matter exists in galaxies by examining how they spin. When an object rotates in a circular orbit, the object has a tendency to fly off in a path tangent to the orbit. If the stays within the orbit, it has a radial acceleration which is equal to its velocity squared over the radius of the orbit. The only force which is keeping the body in the orbit is the force of gravity, which is dependent on the mass of the system. Knowing this, physicists can calculate the mass of a galaxy by looking at how fast stars orbiting its center are moving. Physicists can also calculate where the highest percentage of dark matter should be in the galaxy. In most cases, it is located in a ring just outside the galaxy. In the case of the galaxy shown in the photo, dark matter must be present in the dark space between the nucleus of older yellow stars and the outer ring of young, blue stars.
Joe.velocity.y = Joe.velocity.y - Joe.acceleration. Joe.postion.y = Joe.postion.y + Joe.velocity.y.
Waller, William H. The Milky Way: An Insider's Guide. Princeton, N.J: Princeton UP, 2013. 42+. Print.
The Churning of the Milky Ocean myth has several versions, some quite elaborate in detail. For the purpose of our study we are only dwelling on certain essential features of the tale. The story in brief goes like this.
Tyler, Pat. Supernova. NASA’s Heasarc: Education and Public Information. 26 Jan. 2003. 22 Nov. 2004
“Why is the night sky dark?”(Hienrich) For thousands of years this question, also known as Olber’s paradox, has been asked. Astronomers are constantly growing closer to the answer but still no one has yet found a finite answer. As scientists relentlessly collect data hoping to find some clue as to the answer to this riddle we seem to realize that the answer may be because of something that is too mind blowing for us to comprehend. Several explanations have been considered over the years. But as of right now only about two reasons seem to answer the question at hand. Here are several explanations, some of which have been scientifically accepted and others that just simply appear to be logical.
A galaxy, also called a nebula, consists of billions of stars, interstellar gas, dust, and dark matter which are all bound to form a massive cloud in which we live in. Although it cannot be very well explained, dark matter makes up at least 90% of a galaxy’s mass. Galaxies also contain billions upon billions of stars and their diameter can range from 1,500 to 300,000 light years. That’s huge! The Milky Way, the galaxy in which we live in, is one of about 170 billion galaxies in the observable universe. Our Sun is one of the billions of stars in our galaxy, and our eight planets revolve around this star in only a tiny part of our galaxy. “The Earth’s solar system is believed to exist very close to the Galaxy’s galactic plane, due to the fact that the Milky Way essentially divides the night sky into two virtually equal hemispheres” ("All About the Milky"). It definitely makes people second guess the fact of there being life on other planets.
Astronomers believe that most galaxies consist of a supermassive black hole at the center, which attracts all constituents of galaxies such as, dust, gases (mainly Hydrogen and Helium), atoms, stars, interstellar clouds and planets to the center by force of gravity, but are not sure whether all galaxies contain a black hole in the center. Galaxies keep moving in relative motion to one another and intermittently can come so close that the force of gravitational attraction between the galaxies may become strong enough to cause a change in the shape of the galaxies, while in exceptional cases, the galaxies may collide. If two galaxies collide, they may pass right through without any effect or may merge, forming strands of stars, extending beyond 100,000 light years in space (World Book Online Reference Centre, 2005). Hence, neighboring and often other colliding galaxies induce the sha...
The manipulation of light and dark is portrayed throughout the novella. “Yes but is like a flash of lightning in the clouds. We live in a flicker- may it last as long as the old hearth keeps rolling! But darkness was here yesterday,”(Conrad, 9) This displays the juxtaposition between light and dark and humans and their surrounding. So often humans see life in black and white but never the shaded gray. However, the might of the ego is miniscule compared to the forces that they have no control love, such as lightning. It looks beautiful however can be deadly due to the amount of light and heat it withholds. It exemplifies that beauty is only skin deep and even the most precious phenomenon’s are lethal. The darkness is within the soul, it is our ego and our ignorance. Plans are set out for
The Sun, in turn, is moving in an undulating orbit around the centre of the MIlky Way at 800,000 km/h (ka-boom would be 15 TJ - about a 3.5 kiloton baby nuke), which in turn is moving with the Local Group towards the Virgo Cluster, which in turn...... and so on and so on.