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Multiverse
- 1. WHERE DO WELIVE?
- 2. MULTIVERSE It is atheory that says that out there may be other universes making multi universe. So out there are universes that are maybe just like our Earth or totally different. We can’t see them because they are beyond our universe for which we also don’t know where it ends. Scientists are not really sure, but there is still a lot to be discovered. And many physicists believe that this theory is possible. Parallel universes began with the Big bang that made our universe too. Maybe this is our universe. Maybe this is universe which also has a planet where people live.
- 3. BIG BANG -the beginning of everything. Many scientists believe that this unique event isn’t unique anymore. However, if we go back in the past we see that the theory of big bang doesn't tell us nothing. As there is no proof that big bang even happened (why, how, what was before…) Even if they cannot prove scientists started asking what if big bang did not make just our universe, but hundreds more of them which could be just like ours, but maybe with some differences. The other theory is about more big bangs that possibly happened before and are still happening and will in the future. They would probably happen and they probably happened because of ETERNAL INFLATION About eternal inflation in some of the next slides
- 4. ANOTHER UNIVERSE, ANOTHERYOU AND ME... If this theory is right other universes may have the same heliocentric system and the same planets like ours. For example, there is a planet just like our Earth, but with small differences. Maybe the other Earth has rings like Saturn - totally different or exactly the same. So if there is another Earth and that Earth is populated by humans, what if there is another you and me and everyone else, but are we just like here and are having the same hobbies and living in the same country? For example: here on earth is a very famous actor that everyone knows him, but in other universe he is just an ordinary human or he is a composer or he is already dead. Just imagine what could you be somewhere out there in outer space in other universe.
- 5. INFLATION Usually when wediscuss multiverse we mention inflation. So inflation is part of the Big bang. And when it happened, the universe rapidly expanded. Inflation lasted only 0.00000000000000000000000000000000001 seconds (10 seconds) after the start time. In this really short time universe increased by more than 10 -times. However, what would happen when inflation ends? 50 -35
- 6. ETERNAL INFLATION 1. Inflationdoesn't end. OK, it ends, but not everywhere. It continues it's way at some places and when it stops can cause another big bang which also has its inflation that continues it's way. So this process is always repeating and making new universes. So if this theory is right universes are formed all over again. Big bang And so on... inflation didn’t stop and inflation stopped and caused new Big bang. Don’t think that this is happening fast and that inflation always stops because it’s not. This process is happening slowly.
- 7. ETERNAL INFLATION 2. Soin eternal inflation, inflation didn't stopped it continued on and made new universes. However, what if two or more inflation from different big bangs had crushed or one would crash into another, what would happen then. Probably a new big bang with its own inflation which would also expand. What if inflation would stop everywhere or it would stop majority of inflation. Then, it would probably also made a universe. And the rest of inflation would expand on. However, maybe some inflation wouldn't have sufficient energy to make another universes and just stopped.
- 8. DARK ENERGY, STRINGTHEORY AND ETERNAL INFLATON The eternal inflation, dark energy and string theory make multiverse theory possible and where all the universes would be different. Some have neither light nor matter, but because the possibilities are endless (10500), there is an option that there is or are universes just like ours. While we have not seen these universes we cannot abandon this theory. DARK ENERGY: Dark energy is in physical cosmology and astronomy unknown energy that is causing accelerated expansion of universe. It is the widely accepted explanation of observations of the nineties, which suggest that the universe is expanding rapidly. In space there is 26.8% of dark matter, 68.3% of dark energy and 4.9% of ordinary matter. STRING THEORY: Physicists think that all elementary particles, one- dimensional loops or strings vibrate at a different frequency. Vibration then determine what the particle will be. String Theory would potentially become sought after a universal theory of everything. So if string theory would be true it would bring together quantum world, everything that we know about universe and time. However, there still is a problem. String theory can only work if there are 10 or eleven dimensions. Six or seven small spatial and three large spatial dimensions and time. And because we cannot detect anything so small, for once we can't place it in the background..
- 9. THIS THEORY’S PROBLEM Sothe biggest problem is that there is no prove that multiverse is real. One of the problems is space traveling because we would die of age on way to there. Let's say that we know that multiverse is real and we would like to visit one of them. However, we don't know how. And after thinking about that we come to an idea - Einstein's theory about travelling with light speed (it says that human being wouldn't get old because our cells wouldn't be able to get used). So maybe we could invent travelling with light speed and our So, we could land in other universe. Maybe some universes are so totally different that we would die if we would like to go in those. Until we invent possible way of travelling it will pass many years. After all those problems, multiverse is one of the most interesting theories. As I said if it is real and if someday we will be able to detect it, it will be the most important discovery in our human history.
- 10. SUMMARY The Multiverse theoryhasn't been solved jet. It is a theory about infinite number of other universes which could exist, but are invisible to us. It is one of many theories with which the physicists have faced, but it is also still one of the most interesting ones. So other universes could happen with our big bang or eternal inflation. At first some physicists said that this can't be true that it is the dead end of physics, but now there are many of them which agree and support the idea. At the end I have to say that because there is no prove it doesn't mean, it can't be true.
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