#scichallenge2017 Multiverse - theory that says that out there may be other universes making multi universe

1. WHERE DO WE LIVE?

2. MULTIVERSE
It is a theory 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, ANOTHER YOU 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 we discuss 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.
Inflation doesn'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.
So in 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, STRING THEORY 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
So the 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 theory hasn'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.

11. https://www.youtube.com/watch?v=QiKGWT--c0A
https://en.wikipedia.org/wiki/Multiverse
https://en.wikipedia.org/wiki/Inflation_(cosmology)
http://www.portalvvesolje.si/index.php?option=com_content&view=article&id=1001:odkrit-prvi-
neposredni-dokaz-kozmine-inflacije&catid=1:novice&Itemid=11
http://4d.rtvslo.si/arhiv/stevilke/174360335
https://science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy
http://www.space.com/20929-dark-energy.html
https://en.wikipedia.org/wiki/Dark_energy
Brian Green: The fabric of the cosmos(book)