Black Holes

Paper Summary:

This paper explains the phenomenon of black holes and how the theory of the black hole evolved. It begins by defining black holes and providing a detailed history of them. The paper then discusses whether black holes are just a theory or not and it discusses the evidence that black holes exist even though they cannot be seen with the naked eye.

Table of Contents:
Introduction
What Are Black Holes?
History of Black Holes
Are Black Holes Just A Theory?
Conclusion

From the Paper:

"The authors further explain that at the Schwarzschild radius, the coefficient of the time interval in the Schwarzschild metric is zero (Hawley and Holcomb 1998). As a result, the time interval itself becomes infinite (Hawley and Holcomb 1998). Likewise, radial intervals decrease to zero, which is the definitive length contraction. These effects occur as a result of the choice of coordinates, and these coordinates are not ever absolute even as it relates to Newtonian physics. Nonetheless, the length contraction, time dilation, and other relativistic effects that are dependent upon the metric coefficients, are actual physical occurrences and can be calculated with the right type of instruments (Hawley and Holcomb 1998). In addition the gravitational field in the vicinity of the black hole is more significant at small radius than it is when it is at some distance away, and as a result light moving from near the object endures a gravitational redshift (Hawley and Holcomb 1998)."

Sample of Sources Used:

• Bunn, T. (1995). Black Hole FAQs. University of California and Berkley. http://cosmology.berkeley.edu/Education/BHfaq.html
• Hawkins Michael. (1998) Hunting Down the Universe: The Missing Mass, Primordial Black Holes, and Other Dark Matters. Perseus Books (Current Publisher: Perseus Publishing): Reading, MA.
• Hawley J. F., Holcomb K. A. (1998) Foundations of Modern Cosmology. Oxford University Press: New York.

More papers on Black Holes:

• Analytical Essay # 3428 : "The Mystery of Black Holes"
• Essay # 72780 : "Black Holes"
• Analytical Essay # 23590 : "Black Holes and Space"

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