String Theory"What’s All This Higher Dimensionality Stuff?", Part 1 of 7
David H. Rogstad, Ph.D. For many years science fiction writers have used the so-called “fifth dimension” (a fourth spatial dimension) to serve as a platform for telling fascinating stories. These stories have often been "What’s All This Higher Dimensionality Stuff?", Part 2 of 7
David H. Rogstad, Ph.D. Last time I promised to give some short responses to various questions about dimensionality that have come up in the lunch discussions here at Reasons To Believe. Here are some of them: "What’s All This Higher Dimensionality Stuff?", Part 3 of 7
David H. Rogstad, Ph.D. In last week’s entry I responded to 5 (of 10) questions about dimensionality that came up in lunch discussions here at Reasons To Believe. Here are brief responses to the remaining 5 questions. "What’s All This Higher Dimensionality Stuff?", Part 4 of 7
David H. Rogstad, Ph.D. This is Part 4 of a discussion on higher dimensionality. In Part 1 I mentioned a story by Robert A. Heinlein in which a four-dimensional cube (hypercube) played a role in the story. I promised "What’s All This Higher Dimensionality Stuff?", Part 6 of 7
David H. Rogstad, Ph.D. Let’s continue our discussion about cubes from last week, Part 5. Just as the 3-D cube can be generated with a square by sweeping it out of the plane into the "What’s All This Higher Dimensionality Stuff?", Part 7 of 7
David H. Rogstad, Ph.D. The discussion continues from last week and ends here. The last description (made in Part 6) leads to an important observation. So far, I’ve discussed and Black Holes Provide More Evidence for Strings
by Hugh Ross Arguably the most hotly debated theory in physics is string theory, the concept that at the core of every fundamental particle resides a tiny string or loop of energy that vibrates in nine different dimensions of space. Black Holes, Singularities, and Wormholes
4/1/2001 From a realistic rather than science fiction perspective, the wormhole question is moot. Since black holes are relatively rare, the probability that the singularities of two spatially distant black holes would come into contact is virtually zero, as is the probability that any possible wormhole would lie in a location useful for alien space travel. Cosmic Brane Scans
7/1/2002 As physicians use scanning devices to view the hidden structures and activities of the brain, astronomers can now use distant supernovae and high-resolution cosmic background radiation maps to scan the structures and properties of “branes.” Do Infinite Universes Explain the Fine-Tuning?
by Jeff Zweerink, Ph.D. A monkey randomly hitting keys on a keyboard will eventually produce the entire collection of Shakespeare's works–at least if the monkey types for an infinite amount of time. The truth of the previous statement relies on (at least) two conditions. First, the monkey must actually use all the keys in a random fashion. Second, but more important, the keyboard must contain all the necessary letters and punctuation to produce Shakespeare's works. Higher Dimensions
David H. Rogstad, Ph.D. My favorite science fiction stories, next to those tales involving time-travel, include some aspect of extra-dimensionality, where the reader gets to explore the that could occur when moving beyond Multiverse Musings - The LHC and Extra Dimensions
A team of particle physicists hope to soon being operation of the most powerful man-made particle accelerator, the Large Hadron Collider (LHC). Although much press has focused on scientists who claim that LHC might produce objects that will eventually destroy Earth, I thought it useful to discuss one potential discovery it might make, namely the existence of extra dimensions. The Difficulties of Testing String Theory
7/30/2008 “Test everything. Hold on to the good.” This biblical passage underscores a central principle of the scientific enterprise. Any successful model must undergo testing that will either affirm or falsify its validity. String TheoryString Theory |
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