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by Walden2
Fri Apr 13, 2007 2:12 am
Forum: The Poetry and Prose of Science and Science Fiction
Topic: Space and Spirit
Replies: 38
Views: 103616

Carl Sagan and the Varieties of Scientific Experience

Carl Sagan and the Varieties of Scientific Experience By Larry Klaes Since the time in the distant past when the human brain developed the ability to both imagine abstract ideas and attempt to comprehend our world, we have strived for the answers to the primal questions of existence: How did the Uni...
by Walden2
Fri Apr 13, 2007 2:04 am
Forum: The Poetry and Prose of Science and Science Fiction
Topic: Really Old Stars Perhaps Ideal for Advanced Civilizations
Replies: 7
Views: 29547

Really Old Stars Perhaps Ideal for Advanced Civilizations

Really Old Stars Perhaps Ideal for Advanced Civilizations The idea that other, less-massive, dimmer stars than the Sun could also host habitable worlds has long been debated. A particular class, M-Stars, are of interest simply because there are so many of them—they are the most common star in the ga...
by Walden2
Thu Mar 08, 2007 11:08 pm
Forum: The Poetry and Prose of Science and Science Fiction
Topic: Many Little Dimensions or One Big One?
Replies: 41
Views: 105022

A vote for Randall's Bulk

General Relativity and Quantum Cosmology, abstract gr-qc/0701133 From: Francisco Lobo [view email] Date (v1): Wed, 24 Jan 2007 18:02:33 GMT (12kb) Date (revised v2): Tue, 6 Mar 2007 17:38:14 GMT (12kb) A general class of braneworld wormholes Authors: Francisco S. N. Lobo Comments: 6 pages, Revtex4. ...
by Walden2
Thu Mar 08, 2007 12:32 am
Forum: The Poetry and Prose of Science and Science Fiction
Topic: Many Little Dimensions or One Big One?
Replies: 41
Views: 105022

How small does one get before it no longer affects us?

One of the things I emphasized in my article is how utterly small strings are supposed to be. Anything 100 billion billion times smaller than a neutron that would requre a particle accelerator the size of our galaxy to detect is going to be difficult to prove for a very long time, to put it mildly. ...
by Walden2
Wed Mar 07, 2007 12:00 am
Forum: The Poetry and Prose of Science and Science Fiction
Topic: Many Little Dimensions or One Big One?
Replies: 41
Views: 105022

Many Little Dimensions or One Big One?

Adapted from two articles originally published in the newspaper Tompkins Weekly ( http://www.tompkinsweekly.com ). In the early months of 2007, the college town of Ithaca, New York was visited by two giants in the field of physics. Dr. Lisa Randall, a Professor of Theoretical Physics at Harvard, wen...

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