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STEADY STATE UNIVERSE

Explore the Steady State Theory proposed in 1948 by Bondi, Gold, and Hoyle as an alternative to the Big Bang. Learn about its logic, workings, contributions, refutations, and its impact on cosmology. While the Big Bang model prevails today, the Steady State theory remains an intriguing chapter in cosmological history.

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STEADY STATE UNIVERSE

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  1. STEADY STATE UNIVERSE • by Eric Karlan

  2. The Basics • Who: Hermann Bondi, Thomas Gold, and Sir Fred Hoyle • When: 1948 • Where: Earth • What: Proposed the Steady State Theory • Why: An alternative theory to the Big Bang

  3. The Theory • The universe is always the same, all the time, always static, always contracting or expanding.

  4. THE LOGIC • Based on theoretical mathematical calculations • No sudden beginning to universe • Decrease in density caused by expansion balanced by continuous creation of matter condensing into galaxies • Maintain forever present appearance of the universe

  5. The Workings • Reservoir of energy is negative: Expansion and creation work against each other • Small number of atoms needed annually to maintain steady state

  6. The Contributions • Explains hydrogen and helium abundance in the universe • Contributes to Wheeler-Feynman Theory

  7. The Refutation • Distribution of Radio Sources • 1966: Discovery of Quasars • Cosmic Background Radiation

  8. X The Meaning • Radio galaxies and quasars occur only at very large distances • Implies red-shift • Thus, evolution of universe

  9. The Conclusion • The Big Bang Model prevails present day • Steady State theory helped to prove Big Bang through its testability

  10. The Works Cited • The Steady State Universe. Accessed 25 March, 2006. http://www.schoolsobservatory.org.uk/study/sci/cosmo/internal/steady.htm • “Steady State Universe.” Wikipedia. 11 March, 2004. Accessed 25 March, 2006. http://en.wikipedia.org/wiki/Steady_state_universe

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