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Theory of BLACK HOLE
 By- Rohan Chakraborty
Theory of Relativity – A Brief History
• The Theory of Relativity, proposed by the Jewish
  physicist Albert Einstein (1879-1955) in the early
  part of the 20th century, is one of the most
  significant scientific advances of our time.
• Although the concept of relativity was not
  introduced by Einstein, his major contribution
  was the recognition that the speed of light in a
  vacuum is constant and an absolute physical
  boundary for motion.
• This does not have a major impact on a
  person's day-to-day life since we travel at
  speeds much slower than light speed.
• . For objects travelling near light speed,
  however, the theory of relativity states that
  objects will move slower and shorten in length
  from the point of view of an observer on
  Earth.
• Einstein also derived the famous equation, E =
  mc2, which reveals the equivalence of mass
  and energy.
Now Einstein
• When Einstein applied his theory to gravitational fields,
  he derived the "curved space-time continuum
• -" which depicts the dimensions of space and time as a
  two-dimensional surface where massive objects create
  valleys and dips in the surface.
• This aspect of relativity explained the phenomena of
  light bending around the sun, predicted black holes as
  well.
• As the Cosmic Microwave Background Radiation (CMB)
  -- a discovery rendering fundamental anomalies in the
  classic Steady-State hypothesis
Theory of Relativity – The Basics
• Physicists usually dichotomize the Theory of
  Relativity into two parts.
• The first is the Special Theory of Relativity,
  which essentially deals with the question of
  whether rest and motion are relative or
  absolute, and with the consequences of
  Einstein’s conjecture that they are relative.
• The second is the General Theory of Relativity,
  which primarily applies to particles as they
  accelerate, particularly due to gravitation
• And acts as a radical revision of Newton’s
  theory, predicting important new results for
  fast-moving and/or very massive bodies.
• The General Theory of Relativity correctly
  reproduces all validated predictions of
  Newton’s theory, but expands on our
  understanding of some of the key principles
• . Newtonian physics had previously hypothesized
  that gravity operated through empty space
• But the theory lacked explanatory power as far as
  how the distance and mass of a given object could
  be transmitted through space.
• General relativity irons out this paradox, for it
  shows that objects continue to move in a straight
  line in space-time, but we observe the motion as
  acceleration because of the curved nature of space-
  time.
Theory of Relativity – A Testament to
              Creation
• Using the observed cosmic expansion
  conjunctively with the general theory of
  relativity, we can infer from the data that the
  further back into time one looks, the universe
  ought to diminish in size accordingly.
• However, this cannot be extrapolated
  indefinitely.
•   to be continued………….

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Theory of black hole

  • 1. Theory of BLACK HOLE By- Rohan Chakraborty
  • 2. Theory of Relativity – A Brief History • The Theory of Relativity, proposed by the Jewish physicist Albert Einstein (1879-1955) in the early part of the 20th century, is one of the most significant scientific advances of our time. • Although the concept of relativity was not introduced by Einstein, his major contribution was the recognition that the speed of light in a vacuum is constant and an absolute physical boundary for motion.
  • 3. • This does not have a major impact on a person's day-to-day life since we travel at speeds much slower than light speed. • . For objects travelling near light speed, however, the theory of relativity states that objects will move slower and shorten in length from the point of view of an observer on Earth. • Einstein also derived the famous equation, E = mc2, which reveals the equivalence of mass and energy.
  • 4. Now Einstein • When Einstein applied his theory to gravitational fields, he derived the "curved space-time continuum • -" which depicts the dimensions of space and time as a two-dimensional surface where massive objects create valleys and dips in the surface. • This aspect of relativity explained the phenomena of light bending around the sun, predicted black holes as well. • As the Cosmic Microwave Background Radiation (CMB) -- a discovery rendering fundamental anomalies in the classic Steady-State hypothesis
  • 5. Theory of Relativity – The Basics • Physicists usually dichotomize the Theory of Relativity into two parts. • The first is the Special Theory of Relativity, which essentially deals with the question of whether rest and motion are relative or absolute, and with the consequences of Einstein’s conjecture that they are relative.
  • 6. • The second is the General Theory of Relativity, which primarily applies to particles as they accelerate, particularly due to gravitation • And acts as a radical revision of Newton’s theory, predicting important new results for fast-moving and/or very massive bodies. • The General Theory of Relativity correctly reproduces all validated predictions of Newton’s theory, but expands on our understanding of some of the key principles
  • 7. • . Newtonian physics had previously hypothesized that gravity operated through empty space • But the theory lacked explanatory power as far as how the distance and mass of a given object could be transmitted through space. • General relativity irons out this paradox, for it shows that objects continue to move in a straight line in space-time, but we observe the motion as acceleration because of the curved nature of space- time.
  • 8. Theory of Relativity – A Testament to Creation • Using the observed cosmic expansion conjunctively with the general theory of relativity, we can infer from the data that the further back into time one looks, the universe ought to diminish in size accordingly. • However, this cannot be extrapolated indefinitely.
  • 9. to be continued………….