Showing posts with label cosmology. Show all posts
Showing posts with label cosmology. Show all posts

Wednesday, February 16, 2011

The Geometry of The Universe

An international team of mathematicians is creating a "periodic table" of 3-, 4-, and 5-dimensional "shapes" composing the Universe:
"As these building block shapes are revealed, the mathematicians will work out the equations that describe each shape and through this, they expect to develop a better understanding of the shapes' geometric properties and how different shapes are related to one another."
creating "...a directory that lists all the geometric building blocks and breaks down each one's properties using relatively simple equations."

" ...a computer modelling programme... should enable the researchers to pinpoint the basic building blocks for these multi-dimensional shapes from a pool of hundreds of millions of shapes...The researchers calculate that there are around 500 million shapes that can be defined algebraically in four dimensions and they anticipate that they will find a few thousand building blocks from which all these shapes are made."

"In our project we are looking for the basic building blocks of shapes. You can think of these basic building blocks as 'atoms', and think of larger shapes as 'molecules.' The next challenge is to understand how properties of the larger shapes depend on the 'atoms' that they are made from. In other words, we want to build a theory of chemistry for shapes," added Dr Coates.
One of the many reports on the study is here:

http://www.gizmag.com/periodic-table-of-shapes/17895/

Thursday, November 18, 2010

Garrett Lisi's "Geometric Theory of Everything"

I've been intrigued in the past by the outside-the-box geometry/cosmology thinking of physicist Garrett Lisi (but then I'm not schooled enough in his subject matter to even know if he's only outside-the-box or, off-the-wall!). Peter Woit has a post today related to Lisi's latest theorizing:

http://www.math.columbia.edu/~woit/wordpress/?p=3292

... and here's an older TED talk Lisi gave:

http://tinyurl.com/yla4y52

Thursday, July 29, 2010

10 Dimensions

Superstring theory from physics requires there be at least 10 dimensions to the Universe. It's hard enough for most of us to comprehend 5 or 6 dimensions, let alone 10. This YouTube video tries to confer a sense of how 10 dimensions can exist:

Thursday, July 15, 2010