Steady State Theory

1. STEADY STATE
THEORY

2.  Steady State Theory
was first proposed by
Sir James Jeans (1920) and again
revised from in by Sir Hermann
Bondi and Thomas Gold (1948).

3.  It was further developed by
Sir Fred Hoyle to deal with problems
that had arisen in connection with the
alternative Big Bang hypothesis.

4.  this theory acknowledge that change takes
place on a smaller scale.
 proposes that new stars are continually
created at all time at the rate needed to
replace the stars wich have used up their
fuel and have stopped shining.

5.  adhering to the perfect cosmological
principle, a principle that asserts that the
observable universe is basically the same at
any time as at any place.
proposed as an alternative to the Big Bang
Theory

6. Steady State Theory
VS.
Big Bang Theory

7. Steady State Theory
 has been discarded
due to contradiction in
newer observations.
 The universe has no
beginning or end in
time; and from any
point.
Big Bang Theory
 most widely
cosmological theory of
early foundation of the
universe.
 Starts from a single
point and form
singularity then it
expand continuosly.

8. it is expanding, but
the distances
between matters
increasing on very
small scale.
 also expanding and
all matter are moving
away from each other.

10. Evidences Against
the
Steady State Theory

11. evidence against the theory began to emerge
during the early 1960's:
1. Radio Telescope Observation
 this observation were saying that there were
more cosmic radio sources billion years ago
that there are now. This would suggest that the
universe is changing over time wich
contradicted the theory.

12. 2. Discovery of Quasars
 bright objects but are very small, only found at
great distances from us. Light from them was
emitted billions of light years ago.
 the fact that quasars are only found in the
early Universe provides strong evidence that
the Universe has change over time.

14. 3. Cosmic Microwave Background
 this is a weak background radiation wich fills the
whole space and is the same in all directions.
 in the steady Steady State Theory it is almost
impossible to explain the origin of this radiation.

15. The End

16. References:
https://thesciencegreek.org
https://www.answers.com
https://www.thoughtco.com