Favorites » His Blog
-
When Fascism Comes To America
-
May 10, 10:27pm
8 reviews
politics, fascism, society, quotes, christian
•http://www.photobasement.com/when-fas...
-
-
Introduction and Summary: Views of a Changing World 2003
-
May 7, 9:19pm
0 review
terrorism, statistics, racism, world, race
•http://people-press.org/reports/displ...
-
-
dlaffs profile - StumbleUpon
-
May 6, 9:33pm
8 reviews
stumblers
•http://dlaff.stumbleupon.com/
-
pondering dante
-
The 4 Most Compelling Theories of Everything
-
May 6, 9:32pm
8 reviews
science, bizarre, universe, theory, list
•http://www.oddee.com/item_91567.aspx
-
E8-based Theory of Everything: "Our universe is this beautiful shape"
On November 6, 2007, Antony Garrett Lisi, an American-born theoretical physicist, published the paper called "An Exceptionally Simple Theory of Everything", describing a new unified field theory that connects the theories of quantum physics and gravitation using the mathematical shape E8.
Lisi's inspiration lies in this elegant and intricate shape known to mathematics, called E8 - a complex, eight-dimensional mathematical pattern with 248 points first found in 1887, but only fully understood by mathematicians this year after workings, that, if written out in tiny print, would cover an area the size of Manhattan. E8 encapsulates the symmetries of a geometric object that is 57-dimensional and is itself is 248-dimensional. Lisi says "I think our universe is this beautiful shape."
What makes E8 so exciting is that Nature also seems to have embedded it at the heart of many bits of physics. One interpretation of why we have such a quirky list of fundamental particles is because they all result from different facets of the strange symmetries of E8. Lisi's breakthrough came when he noticed that some of the equations describing E8's structure matched his own.
What Lisi had realised was that he could find a way to place the various elementary particles and forces on E8's 248 points. What remained was 20 gaps which he filled with notional particles, for example those that some physicists predict to be associated with gravity. Physicists have long puzzled over why elementary particles appear to belong to families, but this arises naturally from the geometry of E8, he says. So far, all the interactions predicted by the complex geometrical relationships inside E8 match with observations in the real world.
The crucial test of Lisi's work will come only when he has made testable predictions. Lisi is now calculating the masses that the 20 new particles should have, in the hope that they may be spotted when the Large Hadron Collider starts up.
"The theory is very young, and still in development," he says. "Right now, I'd assign a low (but not tiny) likelyhood to this prediction. For comparison, I think the chances are higher that LHC will see some of these particles than it is that the LHC will see superparticles, extra dimensions, or micro black holes as predicted by string theory. I hope to get more (and different) predictions, with more confidence, out of this E8 Theory over the next year, before the LHC comes online."
-
SpaceCollective
-
May 6, 9:32pm
17 reviews
bizarre, arts, photos, society, gallery
•http://spacecollective.org/gallery/page4
-
A tesseract, also called 8-cell or octachoron, is the four-dimensional analog of a (three-dimensional) cube where motion along the fourth dimension is often a representation for bounded transformations of the cube through time.
The structure is a cube punctured by over 5000 long thin windows that project from all its surfaces and lift it off the ground. The cube, which measures 2.4 x 2.4 metres, is precision-machined from 15mm anodised aluminium and the windows are 18mm square-section aluminium tubes glazed with transparent orange acrylic. As the long thin windows all point at the exact centre of the cube, it only takes a single light source, located at this central point, to send light through every tube, causing the windows to glow orange. A small number of them also project into the cube to form seating.
Ferns are fractal in nature and can be modeled on a computer by using a recursive algorithm. A frond from a fern is a miniature replica of the whole: not identical, but similar in nature.
A green cauliflower, in the B. oleracea Botrytis group, called "Romanesco" has been commercially available in Europe since about 1990. Its head is an example of a fractal image in nature, repeating itself in self-similarity at varying scales.
-
Jonathan Mead & The Secret? There is No Secret
-
May 6, 9:32pm
15 reviews
self-improvement, spirituality
•http://jonathanmead.com/2008/05/02/th...
-
-
gulbostanns profile - StumbleUpon
-
May 6, 9:28pm
135 reviews
stumblers
•http://gulbostann.stumbleupon.com/
-
-
StumbleUpon - tree-lightss web site reviews and blog
-
May 6, 9:28pm
4 reviews
stumblers
•http://tree-lights.stumbleupon.com/
-
Brilliant
-
StumbleUpon - Canyon317s web site reviews and blog
-
May 6, 6:40pm
94 reviews
stumblers
•http://canyon317.stumbleupon.com/
-
Thank you!
-
s1956s reviews
-
May 6, 6:39pm
44 reviews
stumblers
•http://s1956.stumbleupon.com/
-
wonderful nature photos, thank you!
StumbleUpon is the best way to discover great web sites, videos, photos, blogs and more - based on your interests.
Everything is submitted and rated by the community. Discover, share and review the best of the web!
|
Online now
Join StumbleUpon >
