|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Essay on Discovery That the Universe Is Expanding
The Discovery That the Universe Is Expanding: Developments in
Theoretical and Observational Cosmology, 1915-1930 Author: David Ford Date: 21 Aug 1998 version 102 Words in full essay: 7,000 Below: Outline, Introduction, and link to full essay Outline: I. Introduction II. Relativity III. Einstein's Solution IV. De Sitter's Solution V. Friedmann's Solutions VI. Lemaitre's Solutions VII. Constant Abandoned VIII. Slipher IX. Scientific Background to Hubble X. Hubble Seeks and Finds a D-V Relation XI. Calculations Involving the Hubble Law XII. General Comments on Universe's Expansion XIII. Conclusion XIV. Key to Notes I. INTRODUCTION The years 1915 to 1930 were exciting times in cosmology. During those years, German theoretical physicist Albert Einstein's general theory of relativity was published and seen to describe the universe's behavior as changing over time. Because he believed in the reigning view of the universe as being infinitely old and static, i.e., neither expanding nor contracting and not changing in appearance over time,[h295] Einstein refused to accept the implications of his equations and altered them so that his model of the universe was static. Other theoretical physicists, writing in 1917, 1922, 1924, and 1927, strongly suggested on the basis of the relativity equations that the universe was indeed expanding. Familiarity with one expanding solution to the equations prompted American astronomer Edwin Hubble to investigate the nature of the universe, and in 1929, Hubble published work demonstrating that galaxies were traveling away from each other. The scientific community was forced to relinquish the idea of a static, infinitely old universe, as lines of evidence from both theoretical and observational astronomy converged to say that the universe is expanding. remainder of essay: [[Mod. note -- long url wrapped onto 2 lines -- jt]] http://www.google.com/\ groups?selm=Pine.LNX.4.44L.01.0308140928380.13996-100000%40linux2.gl.umbc.edu |
#2
|
|||
|
|||
Essay on Discovery That the Universe Is Expanding
On Sat, 16 Aug 2003 19:25:37 GMT, david ford
wrote: The Discovery That the Universe Is Expanding: Developments in Theoretical and Observational Cosmology, 1915-1930 Author: David Ford Date: 21 Aug 1998 version 102 Words in full essay: 7,000 Below: Outline, Introduction, and link to full essay Outline: I. Introduction II. Relativity III. Einstein's Solution IV. De Sitter's Solution V. Friedmann's Solutions VI. Lemaitre's Solutions VII. Constant Abandoned VIII. Slipher IX. Scientific Background to Hubble X. Hubble Seeks and Finds a D-V Relation XI. Calculations Involving the Hubble Law XII. General Comments on Universe's Expansion XIII. Conclusion XIV. Key to Notes I. INTRODUCTION The years 1915 to 1930 were exciting times in cosmology. During those [Moderator's note: Quoted text snipped. -P.H.] remainder of essay: [[Mod. note -- long url wrapped onto 2 lines -- jt]] http://www.google.com/\ groups?selm=Pine.LNX.4.44L.01.0308140928380.139 96-100000%40linux2.gl.umbc.edu Even when you get there, there is no hint how to open the essay for reading. I get an error that the requested page does not exist. Perhaps someone can track down the proper URL and post it here. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Breakthrough in Cosmology | Kazmer Ujvarosy | Space Shuttle | 3 | May 22nd 04 09:07 AM |
Breakthrough in Cosmology | Kazmer Ujvarosy | Astronomy Misc | 3 | May 22nd 04 08:07 AM |
Breakthrough in Cosmology | Kazmer Ujvarosy | Space Station | 0 | May 21st 04 08:02 AM |
Breakthrough in Cosmology | Kazmer Ujvarosy | Policy | 0 | May 21st 04 08:00 AM |
The Colour of the Young Universe (Forwarded) | Andrew Yee | Astronomy Misc | 0 | December 19th 03 05:48 PM |