What is Space ?
This world is filled with stuff's that we see around .
Space in which all these things / stuff's exists .
If we take all the stuff's away , for example : - People , car etc ... and also even largest objects like planets to the smallest of subatomic particles . Then empty space is left , this is not nothing but it is something .
Matter removed from earth
Empty space left behind when the matter ( Earth ) is removed .
Planet Earth .
But space can be bent , twisted and even rippled .
Empty space forms world around us .
Space is actually everywhere from atoms to galaxies .
Empty space in the vastness of the COSMOS ( UNIVERSE ) . Space in between the stars and galaxies .
Empty space shown in an hydrogen atom ( Microscopic scale ) .
Empty space in an atom . ( Microscopic scale ) .
If we remove all the space from the large object it will become very small .
A large building with all the matter and space .
When space is removed from the mass ( large building ) , then this tiny mass is left behind .
Spinning in empty space .
If in spinning when arms are stretched it is spinning with respect to space itself .
Spinning in air while arms is stretched , spinning with respect to the emptiness of space itself .
Issac Newton .
We still use Newton's law based on space mission and etc .
Space is real even if we can't feel it .
In 1800's Albert Einstein changed everything about space .
What is light ?
What is the speed of light ?
Consider a moving car .
Car moving at the normal speed .
Car moving at the speed of light .
Moving car doesn't give extra push to the light .( Headlight of the car )
Light speed is always constant for everyone .
Moving at the speed of light makes the car become tiny ( compressed ) and moves slower in time for the observer outside the car , but for person sitting inside it appears to be normal .
" Space-time forms a fabric . "
Space - time fabric .
Space - time are flexible . Then Einstein called it space - time .
Einstein applied this to gravity .
Then how did gravity worked ?
After 10 years of work Einstein explained the gravity , Gravity is even more flexible .
Space - time fabric . Here object are bound to the central object due to the curvature of the space .
Earth is revolving around the Sun due to the curvature of the space - time fabric .
Earth revolves around space-time fabric which Sun creates.
" These described entire Universe , space plays a leading role and space is fabric and flexible "
Black holes have large mass and a strong gravity .
A black hole named Cygnus X-1 . It is formed when a large star caved in . This black hole pulls matter from blue star beside it .
Gravity Probe B .
Gravity Probe B ( GP - B) is a satellite-based mission which launched on 20 April 2004 on a Delta 2 rocket. The spaceflight phase lasted until 2005 , its aim was to measure space-time curvature near Earth , and thereby the stress-energy tensor (which is related to the distribution and the motion of matter in space ) in and near Earth . This provided a test of general relativity , gravito magnetism and related models .
Total cost of project : $ 750 million .
Gravity probe B comprised four London moment gyroscope and a reference telescope sighted on HR8703 .
Space is real like a fabric .
No space then there will be no twist .
Quantum world .
Smallest objects like sub-atomic particles .
Even if we remove all space its still far from empty .
Particles erupt (or) appears from nothing . Particles emitted from nowhere .
In 1948 a scientist named Henry Casmir predicted , if two plates placed extremely closed to each other then the thickness of a paper .
II : Very thin spacing in between the plates A and B . Space I and III pushes the plates until they merge .
Actually particles are present in the space I and III which pushes the plates in the Quantum world .
When these plates placed parallel to each other in Quantum world , with the emptiness between the plates . Then the particles outside the plates push the plates until they merge .
CERN Geneva .
LHC : Large hadron collider is a $ 10 billion dollars project .
It is a particle accelerator , where particles move at 99.99 % of speed of light .
Particles colliding at 99 % of speed of light .
In 1964 Peter higgs said .
All particles have different masses and why so ?
" Space is like ocean , particles gain mass when they interact with this ocean . "
Particles which moves with great difficulty in the space gains more mass and hence gravity compared to the ones which moves easily .
Higgs-field is everywhere even in emptiness of space , but there is no physical proof for Higgs field .
Higgs particle and Higgs field .
BIG - BANG .
Universe expanded in a fraction of seconds .
Gravity eventually stopped the speed of expansion .
Will space expand forever ?
Will gravity slows and big crunch will happen ?
BIG - BANG model of the UNIVERSE .
BIG - CRUNCH model of the UNIVERSE .
Super-Nova is a very rare event which occurs with an explosion which is very bright .
Super - Nova explosion .
It was confirmed by Telescope that Universe was expanding . Dark energy pushes ( 70 % of Universe is Dark - Energy ) .
70 % is empty space in Universe .
Dark Energy pushing the Space apart .
Einstein gave a cosmological constant to solve the big-bang and big-crunch problem in order to get the static Universe ( Antigravity ) .
Later Einstein said it was a mistake , his greatest blunder .
Cosmological constant Lambda as shown in the equation .
" Hubble proved that Universe was expanding , thus Einstein's cosmological constant was removed and it was called his greatest blunder . "
Cosmological constant may explain expansion of Universe .
Dark energy pushes further apart until Universe is alone and empty - space is left behind .
Even atoms rip apart because of increase in dark energy in space .
Graphical representation of the expansion of the UNIVERSE .
Space can be a hologram .
If object falls into the black hole it forms a 3D information inside it , where it is completely lost .
Even if the information of object is held in the 2D at the surface of black holes .
Black hole .
Universe can be a Hologram .
3D information may be present inside the Universe and 2D information is present outside the Universe .
"3D is an illusion or 2D is the ultimate reality ??? "
Holographic Universe . ( 0's and 1's information )
" Space is a familiar stranger .
space is all around us but we are still far from having unmasked its true reality . "