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The Dimensionality of Spacetime | Blackboard Chalk
https://blackboardchalk.wordpress.com/2007/09/02/the-dimensionality-of-spacetime
The Shape of a Moebius Strip. The Dimensionality of Spacetime. I was pointed to this old-ish paper. Tegmark begins by pointing out a few consequences of physical laws that seem to favour observers arising in a world with 3 1 dimensions:. 1 Under present physical laws, if we have more than one time dimension, elementary particles become very unstable. Still, they would be stable enough at very low kinetic energies, so perhaps we could have observers in such a world, just very slow ones. If this type of we...
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Blackboard Chalk | Reading and discussing scientific papers | Page 2
https://blackboardchalk.wordpress.com/page/2
Newer posts ». Is a cute paper investigating the geometry of turtle shells and its relationship with turtles’ strategies for flipping themselves over if they end up on their backs. The flattest types of shells are in class S. With two stable equilibria: upside-down and right-side-up. Then there are the intermediate shells with three stable equilibria (black dots are stable equilibria; white dots are unstable saddle points):. Category; most flat turtles into S. Tall) turtles can’t reach the ground w...
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The Relationship Between Arithmetic and Spatial Intuition | Blackboard Chalk
https://blackboardchalk.wordpress.com/2008/06/15/the-relationship-between-arithmetic-and-spatial-intuition
As if free will wasn’t in enough trouble. Blocking streets to reduce congestion delays. The Relationship Between Arithmetic and Spatial Intuition. Label one end of a straight line 0, and the other end 100. Ask a person to place the number 10 at some point along the line. Where would the person choose to place the number 10? A possible explanation for this log relationship is the ‘compressed numerosity code’ the brain uses for mental arithmetic:. Feed for this Entry. Leave a Reply Cancel reply.
quantumbiodiscs.blogspot.com
Quantumbiodiscs: It's time to call it
http://quantumbiodiscs.blogspot.com/2007/08/it-time-to-call-it.html
Where randomness is the only certainty. Wednesday, August 08, 2007. Its time to call it. Mark has an excellent post. Over at LP today. He points out that Howard's approach to this election is going over the top and if he continues in this way he's surely going to lose it. Howard's saturation coverage is having the effect of making him look desperate. Will the public have to endure another three years of this crap? Subscribe to: Post Comments (Atom). View my complete profile. Bremner AT gmail DOT com.
blogphysica.wordpress.com
Atmosphere of Exoplanets «Blog Physica Blog Physica
https://blogphysica.wordpress.com/2007/02/25/atmosphere-of-exoplanets
Sunday, Feb 25 2007. From a NASA press release this week. NASA’s Spitzer Space Telescope has captured for the first time enough light from planets outside our solar system, known as exoplanets, to identify molecules in their atmospheres…. Spitzer, a space-based infrared telescope, obtained the detailed data, called spectra, for two different gas exoplanets. Called HD 209458b and HD 189733b, these so-called “hot Jupiters” are, like Jupiter, made of gas, but orbit much closer to their suns. And via BA Blog.
blogphysica.wordpress.com
Feynman on the Relation between Physics and Mathematics «Blog Physica Blog Physica
https://blogphysica.wordpress.com/2007/06/24/feynman-on-the-relation-between-physics-and-mathematics
Feynman on the Relation between Physics and Mathematics. Sunday, Jun 24 2007. Feynman on the Relation between Physics and Mathematics. February 9, 2010 at 11:23 pm. I want to watch this video explaining the relationship between physics and math. February 26, 2010 at 10:08 pm. Http:/ research.microsoft.com/apps/tools/tuva/index.html#data=4. Leave a Reply Cancel reply. Enter your comment here. Fill in your details below or click an icon to log in:. Address never made public). How to post in this blog?
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LaTeX at last ! (Illustrated with a GR calculation) «Blog Physica Blog Physica
https://blogphysica.wordpress.com/2007/02/18/latex-at-last-illustrated-with-a-gr-calculation
Illustrated with a GR calculation). Sunday, Feb 18 2007. After waiting for long, Blogphysica gets. See the announcement at the wordpress.com Blog. The Basic syntax is $latex LaTeX Equation $. You can find a list of. In particular, if you find the formulae are too small try $latex { displaystyle LaTeX Equation }$ . It’s great! For some more options. Now, to illustrate LaTeX, I’ll take up a particular problem. Consider two equal masses falling towards each other, as shown below, starting from rest. All the...
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Will Power | Blackboard Chalk
https://blackboardchalk.wordpress.com/2008/02/13/will-power
A Little Biological-Anthropological Speculation. Phenotypic Switching Rates and Environmental Fluctuations. Now you have an excuse for why you can’t seem to stay on a diet. If this paper. Is right, the drop in blood glucose levels caused by dieting erodes your self-control and increases the likelihood, as your diet progresses, that you fail to follow it. The authors designed nine different experiments to test each of the following hypotheses:. Amount of glucose. So it’s not true that “it&...Gailliot, M&#...
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Blocking streets to reduce congestion delays | Blackboard Chalk
https://blackboardchalk.wordpress.com/2008/10/03/blocking-streets-to-reduce-congestion-delays
The Relationship Between Arithmetic and Spatial Intuition. The ubiquity of corn in US fast food. Blocking streets to reduce congestion delays. Intuitively, it seems that a larger number of alternative routes in a traffic network would reduce traffic congestion. This PRL paper. Though, suggests that the removal of some roads would actually reduce congestion. This comes about because the presence of these roads can create a game-theoretic situation in which the Nash equilibrium. At the end, the authors sug...
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Pathogens and Polygyny | Blackboard Chalk
https://blackboardchalk.wordpress.com/2008/01/31/pathogens-and-polygyny
A Little Biological-Anthropological Speculation. At first sight it might seem that pathogens have little to do with polygyny. But anyone who knows the ‘Red Queen’ theory can probably guess the link between the two. In brief, the Red Queen. Paper investigating a possible link between pathogen stress and polygyny says, “The greater the pathogen stress, the greater is the advantage to the production of variable offspring.”. And Marlene Zuk proposed. Signals). Biologically, humans have little sexual dimo...
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