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The Slone Digital Sky Survey

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This choice was purely based on its scientific nature, since Part I was highly concentrated on cultural and creative aspects. This is a polarised perspective from even the conference watched. This documentary also incites interest just by its title, because everyone has their own perspective on the beginning and history of the universe, where it actually should be a matter of science an should be objective. Due to the connotation and multiple questions that I later had answered during this documentary brought me to even watch it on the first place.

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The documentary was conducted by Max Tegmark who has been a popular spokesmen for the universe, his accolades brings credibility to the table and therefore much more reliable. The main topic was cosmology and interests around it. The history of our universe dates back to 13.7 billion years, the figures given was relative to everyone’s age in the audience and therefore it made it interesting where huge progress has been made, because it was inclusive of all people.

The concept that we see sun 8 minutes late on earth which means we see the sun in the past so if the sun was to blow up we would know it 8 minutes late, similarly the further you go into space the more time it takes for you to receive information. With this perspective of the universe, it is hard to comprehend the grandeur of the our universe, because here we would assume that it is huge but if you put into perspective and move further away from our galaxy; it becomes a tiny dot and therefore sometimes million years away, which was shown in a three dimensional structure while zooming out on the live spatial views into cosmology.

The Slone Digital Sky Survey which has a view of the entire sky in a sphere but with great detail as you zoom out, showing the vastness of the space. This concluded our positioning in space perspective.

It was now important to understand out pace in time, what would earth look like 13 billion years ago from the perspectives presented above? Nothing. It would look like nothing, the further you move the smaller and younger the galaxies look and if you look even much further, you tend to see no galaxies; because it was so early on in time that galaxies did not even exist.

Further back it is mostly opaque plasma of hydrogen gas, stars and galaxies. The opaque plasma is built when gas is heated, this is to say that if you take gas and expand it, it cools off, so as we go further into space things are much denser and therefore much hotter. So here if you turn hydrogen into gas it turned into plasma.

There is not yet much evidence on what exactly happened 13.7 billion years ago during the Big Bang but two things are certain that happening and happened back then, the expansion transformed from being dense to diluted, from hotter to cooler and from smooth to clumpy, which was the doings of the gravity. Gravity has been majorly responsible in the main occurrences in the creation of the universe that science is currently trying to prove.

If a place gets more clumpy the gravitational force is making it more clumpy in that one particular place, it was well described by the example of an the economic theory; the people who are rich get richer similarly, where there is more mass it attracts more mass.

When gas gets hot it tends to shine and a have nuclear fusion reactions which turns into a star and therefore you see more stars and later more stars crash to make bigger things which was how our galaxy was formed. This theory, with backed research is just a theory now and there is still active research going on as to if it is true.

A gas cloud was trying to form a solar system that then with further clumping and nuclear fusions and they formed into planets. The Earth itself has changed in terms of land mass from one big continent to many different ones. This was in the time span 200 million years which seems a lot but is actually insignificant; it is less than a percent of the age of the universe.

There reached a point where it became obvious to ask the question of why should we believe so? And the speaker posed this question and also answered saying that we should believe it because there is an ample amount of data present, which in his terms means that before cosmology was a speculative game but now it is backed with data and evidence. The speaker proposes that there is a lot more to be found and that is down to the younger audience to figure out.

This documentary has been interesting in many different ways, quantic measurements and visuals gave much perspective of how things are in space; outside the Earth. This gave a very factual approach to the limitations of how much we know in cosmology today and what the future could hold.

Everyone should have a factual brief of the beginning of the universe. I challenged myself to choose this documentary to try something out of the norm for me. This put me on edge to understand scientific reasoning of how spatial matters react. It put into perspective human standing on time and space, which should be general knowledge but is not, this opened my eyes to studying more into scientific studies done on hoaxes and theories and better understand them.   

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