Dark Matter and Dark Energy Pdf Free Download
Matter
/ Dark Matter / Dark Energy
What
is Matter? What is Dark Matter? What is Dark Energy?
What
is Big Bang? What is Big Crunch?
What
is galaxy? What is Solar System? What is Universe?
Matter
Matter
is anything that occupies space having volume. All the things we see in the
universe which are visible to us belong to Matter planet galaxies stars etc.
Only 4% of the Atmosphere is visible to us which is our universe and is visible
matter.
Dark Matter / Dark Energy
 |
| Dark matter/Dark Energy |
In physical cosmology and astronomy,dark energy is an unknown form of energy. Dark Matter is
neither related to light nor Electromagnetic Waves. In Early times Scientist’s
think that our universe is still and can’t Increase or decrease in its size, it
has its fixed size and is static. Einstein 1917, Theory of relativity came into
scene. Einstein think that our universe is not still or static it is expanding
or contracting. Einstein said that everything has gravitational pull and
attract every other thing. i-e Due to Attraction Galaxies comes close to Each
other and collide with each other in that way the universe vanishes and it
happens the Death of the Universe….. But it not happens so because in Universe
Where there is Space there is some sort of Invisible Energy present which
oppose the gravitation of Galaxies and maintain balance in the Universe. In
that way this Invisible Energy plays important role to remain universe exist in
static form and stable this invisible energy is called Dark Energy.
In 1929, Hadden see by
powerful binoculars that our universe is expanding and our galaxies are going
further apart from Each other’s.
In 1929 scientists don’t believe that universe is expanding. In Quran This Fact
was mentioned 1400 years ago. “And the heaven we built it with craftsmanship and
we are still expanding”. (Quran 51:47) Now
we come to know that universe is expanding. After the Big bang universe is
expanding there will be some point where universe will comes to one point. Why
galaxies are going further apart from each other’s what kind of energy or
strength is that scientists were unable to name this power and called it Dark Energy.
After
Big bang there was no galaxies or stars were present. There was only free
particles like smog. Dark matter tends to attract things towards each other’s,
it was trying to combine these particles and make it solid form. Dark energy
was repelling these particles away from each other’s and was disturbing the
work of Dark Matter. There was battle between Dark matter and Dark Energy in
the end Dark matter succeeded in making galaxies. The battle between Dark
matter and Dark Energy is going on.
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| Dark matter/Dark Energy |
Darkmatter is present in the universe like spider web in the rain. If we see spider
web form distance we will be able to see only drops of rain on the web it
represents galaxies and where there is nothing Dark matter is present by this
vacuum. Spaces between galaxies are increasing due to Dark Energy. Dark energy
is causing the universe to expand. Dark matter does not emit or absorb radiation
or light. It has strong gravitational field light bends around it.
Big bang /Big Crunch
The Big bang is commonly considered to be the theory of the
universe birth but it does not exactly describe the basics or the origin of
universe with strong evidences.
The Big Crunch is another theory of the universe in Which the universe will be
expanding gradually,in which the metric expansion of space eventually reverses
and Universe will come to singularity or causing a reformation of the universe
starting with another Big Bang.
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