Dark Particles

Recently I watched Interstellar, and it is the most amazing movie I have seen this year. I think it is quite possible the greatest sifi movie I have ever seen as well, even better than Inception, if you count that as sifi. The reason I am talking about that movie is because it covers so many neat ideas as well as theories in physics that I wanted to talk about some of them. I actually found an article that talks about a few of the theories. I don’t want to ruin any part of the movie so I will try my best to skirt around the plot details, but if you have not seen it yet you really need to. It is truly one of the best films I have seen in a long time.

As you know many of my Random Thoughts post come from articles that I have found searching the internet. Sometimes I have trouble finding things to write about, but it seems that there are a plethora of interesting articles on Space.com. Ha, never would have thought to look there, but anyways that is where I found the above article, then there was a recommendation on that site that lead me to this article.

While I am by no means an expert on anything that deals with physics and the theories of the universe, I like reading about them and trying to figure them out. At times I think that I have a decent grasp on some of the theories that are presented. However, I have not dabbled in dark matter or dark energy. I have heard of both of these before, but for some reason I have never taken it upon myself to research them further. Only when I read the above article did I realize how important both are to our understanding of the universe.

So here is what I think I know about Dark Energy. After the Big Bang there was a period of inflation, of which scientist are still trying to prove, but most agree that it probably happened. This inflationary period forced the universe to expand, and it is still doing so, which is very strange. Scientists think that there must be something that is continuing to make space expand and drive itself apart. They believe that this Dark Energy is what is causing the rapid expansion. As always there are a few issues, one as I mentioned above scientists are not 100% sure about the inflationary period after the big bang, and if they cannot prove that, then the addition of Dark Energy does not make any sense. If they cannot prove without a doubt the inflation occurred then they will have to go back to the drawing board, but as it stands this is the best theory we have. The other problem is that there is no way to detect this energy. So it is kind of like looking for a needle in a haystack without knowing the needle exist in the first place. They also talk about Dark Matter, which again is very hard to detect, if it even exist at all. The bleow quote is from Wikipedia:

…the total mass–energy of the known universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. Thus, dark matter is estimated to constitute 84.5% of the total matter in the universe, while dark energy plus dark matter constitute 95.1% of the total mass–energy content of the universe.

This is fascinating for a couple of reasons the first and most obvious is that we know next to nothing about what makes up over 95% of the universe. This is a scary thought and one of the many reasons we do not yet fully understand our universe.

I find this pretty bizarre and, these dark particles have once again reignited the mystery of the universe, at least for me. I think one of the reasons I have not researched this too much is because I think this is more in the realm of straight theory, there is some actual proof to go along with it but just seems weird I guess. I don’t know ,I am just trying to make an excuse as to why I have not studied it further. If this energy does exist I wonder if this could hold the key to manipulating space and perhaps opening a whole other area of unexplored physics. Most scientists believe that wormholes exist, the problem is that they also believe they are incredible small and exist in only a fraction of time. So I wonder if this energy could help enlarge one and keep it open long enough to send something through it. If, and that is a large if, this is possible then we could potentially be well on our way to controlling these wormholes which could open a great many doors (pun intended).

A wormhole in theory connects two points in space, technically making large distances shorter. Think of taking a piece of paper and drawing two small circles on opposite ends, the two dots are very far apart. While they only appear a short distance, imagine that the two dots are two stars millions of light years apart. It would take an incredible amount of time to get from one circle to the other. Now imagine folding the paper in half, now the two circles are practically touching. In essence you have folded “space” and made a wormhole connecting two distant points. That same theory applies to wormholes. The other thing and I think this is way more fascinating, is that I think theoretically the wormhole could also connect two points in time. This opens up a whole other world that could make time travel possible, not only to the future but also to the past.

The first article talks about this in more detail, which I found very interesting. In the movie Interstellar something similar is explored, basically there is a planet that is orbiting a black hole. Black Holes are known to be infinitely massive, and using Einstein’s General Relativity theory things that are very massive can warp space time. So time on this planet that is orbiting the black hole time moves more slowly that for someone here on Earth. A person spending a few minutes on this planet would see that hours or days have passed on Earth as a result of this gravitational time slip. It is an interesting idea and one that is really cool when talked about in the movie. There is a scene in the movie that truly blew my mind that has to do with this idea. Time is such a weird concept to us humans, then when certain things in nature start to alter it without the use of technology, it makes for a truly bizarre occurrence. Perhaps in the future we will understand more about these ideas and begin to use them to our advantage without having to use advance technology, maybe we should let nature work for us.

Manik

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