Difference between revisions of "User talk:Infomaniac"
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Observations that support the notion that spacetime in nature does not exceed 3 orthogonal dimensions | Observations that support the notion that spacetime in nature does not exceed 3 orthogonal dimensions | ||
| − | * [http://www.lomont.org/Math/GeometricAlgebra/NFMPchapt1%20-%20Hestenes%20-%201998.pdf NFCM (New Foundations for Classical Mechanics) summary - David Hestenes] Ch. 1 P. 3 | + | * [http://www.lomont.org/Math/GeometricAlgebra/NFMPchapt1%20-%20Hestenes%20-%201998.pdf NFCM (New Foundations for Classical Mechanics) summary - David Hestenes] Ch. 1 |
| − | :"The completely antisymmetrized product of k vectors a1; a2; : : : ;ak generates a new entity a1 ^ a2 ^ : : : ^ ak called a k-blade. The integer k is called the step (or grade of the blade.* A linear combination of blades with the same step is called a k-vector. Therefore, every k-blade is a k-vector. ''The converse that every k-vector is a k-blade holds only in the geometric algebras Gn with n /LE 3.''" {{to do|task=fix math notation}} | + | ** P. 3 |
| + | ::"The completely antisymmetrized product of k vectors a1; a2; : : : ;ak generates a new entity a1 ^ a2 ^ : : : ^ ak called a k-blade. The integer k is called the step (or grade of the blade.* A linear combination of blades with the same step is called a k-vector. Therefore, every k-blade is a k-vector. ''The converse that every k-vector is a k-blade holds only in the geometric algebras Gn with n /LE 3.''" {{to do|task=fix math notation}} | ||
| + | ** P. 8 Special and unique properties of ''i'' in 3-space, as unit pseudoscalar, as dual, as inverse space | ||
| + | :: "" | ||
* Bott periodicity {{to do|task=find reference}} | * Bott periodicity {{to do|task=find reference}} | ||
* Ardeshir Mehta on the impossibility of n>3 orthogonal directions {{to do|task=find reference}} | * Ardeshir Mehta on the impossibility of n>3 orthogonal directions {{to do|task=find reference}} | ||
Revision as of 16:15, 11 September 2010
Contents
Moved
I've just moved to the Amazon in Brazil. I suffer from anemic bandwidth, so currently I am a bit handicapped.
To Do
multilingual wiki
start brainstorming about best structure for multilingual wiki
- sisterwiki structure:
- en.host.com/wiki/page <-> pt.wiki.host.com/wiki/page
- one-to-one correspondence among languages via subdomains
- - requires administrator to create subdomain
- + symmetric and non-biased
- + subpage organization permitted
- + categories, templates, properties can be differentiated and translated
- - categories, templates, properties must be duplicated, making administration potentially chaotic
vs.
- subpage structure:
- single domain using subpages: host.com/wiki/page <-> host.com/wiki/page/pt
- dominated by English hub as default
- + does not require administrator to create language subdomains
- - ugly structure with one language at top of hierarchy
- - subpage organization not permitted
- + categories, templates, properties are unified into a single hierarchy
- - categories, templates, properties become complicated to render in multiple languages, require alternate renderings and additional complexity, possibly many redirects that could introduce chaos into the wiki
hosting
- Need a place to host SMW+ - preferably in the
southern hemisphereSouth America (aside from poor bandwidth in northern Brazil, latency to NZ is a problem). - Or use Osirus?
- Or what is the status of Diaspora?
best practices: user page, user talk
My user/talk pages are becoming disorganized and lack direction or standardization. What's the best practice for these pages? seems to me:
- user page (my page): what I have to say about myself and what I'm doing
- user talk: discussions and interactions between myself and other users.
any comments?
2012
- The Sovereign Individual book covers a lot of the foundations of the change to come, my interpretation is that this is about the days of centralisation coming to an end and the new distributed bottom-up paradigm coming about... One of the biggest breakthrough's for this new paradigm to really take off is that we need a secure p2p payment system which is an open standard. There's some notes on that at Currency and some at Human Ecology --nad 00:58, 7 June 2010 (UTC)
observations
dimensionality of spacetime
Observations that support the notion that spacetime in nature does not exceed 3 orthogonal dimensions
- "The completely antisymmetrized product of k vectors a1; a2; : : : ;ak generates a new entity a1 ^ a2 ^ : : : ^ ak called a k-blade. The integer k is called the step (or grade of the blade.* A linear combination of blades with the same step is called a k-vector. Therefore, every k-blade is a k-vector. The converse that every k-vector is a k-blade holds only in the geometric algebras Gn with n /LE 3." To Do: fix math notation
- P. 8 Special and unique properties of i in 3-space, as unit pseudoscalar, as dual, as inverse space
- ""
- Bott periodicity To Do: find reference
- Ardeshir Mehta on the impossibility of n>3 orthogonal directions To Do: find reference
