Science > Physics > Mach's Principle (review of history and significance)
| Topic: |
Science > Physics |
| User: |
"Sam Wormley" |
| Date: |
16 Jul 2004 11:48:20 AM |
| Object: |
Mach's Principle (review of history and significance) |
Ref: http://arxiv.org/abs/physics/0407078
Physics, abstract
physics/0407078
From: Bahram Mashhoon [view email]
Date: Wed, 14 Jul 2004 19:17:41 GMT (19kb)
Mach's Principle
Authors: Herbert Lichtenegger, Bahram Mashhoon
Comments: 20 pages
Subj-class: History of Physics; General Physics
We briefly review the history of Mach's principle and discuss its
significance in the light of modern physics.
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| User: "Uncle Al" |
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| Title: Re: Mach's Principle (review of history and significance) |
16 Jul 2004 01:28:38 PM |
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Sam Wormley wrote:
Ref: http://arxiv.org/abs/physics/0407078
Physics, abstract
physics/0407078
From: Bahram Mashhoon [view email]
Date: Wed, 14 Jul 2004 19:17:41 GMT (19kb)
Mach's Principle
Authors: Herbert Lichtenegger, Bahram Mashhoon
Comments: 20 pages
Subj-class: History of Physics; General Physics
We briefly review the history of Mach's principle and discuss its
significance in the light of modern physics.
"In his effort to demonstrate the need of the idea of absolute
space, Kant refers to the existence of incongruent objects. These
objects (e.g. a right and a left hand) agree in all metric
properties and are thus equal with respect to all internal
relations, yet they can be distinguished from each other.
Therefore, the reason for this discrimination can only be due to
external causes, i.e. to the proportion of the locations to space
itself. According to Kant, this inexplicability of the existence
of incongruent objects on the basis of a relational view of space
warrants the introduction of absolute elements as agents of
explanation."
The parity Eotvos experiment has philosophical basis! Do it
anyway.
Kant's discomfiture is worse than face value. It is said that
immersing 3-D chiral objects in 4-D space allows a pathway to
interconvert chiralities by rotations/translations without
performing a coordinate inversion. There two classes of parity
(chiral along all coordinate axes) objects, those with direct
symmetry index equal to zero (DSI=0) and those with DSI>1. DSI=0
coordinate sets do not flatten when immersed in higher
dimensions. A distorted tetrahedron, four points with point
group symmetry T, can be chiral but apparently not with DSI=0.
Twelve points will definitely construct a DSI=0 parity pair with
CHI=1: [5.5]chiralane.
<http://petitjeanmichel.free.fr/itoweb.petitjean.html>
<http://petitjeanmichel.free.fr/itoweb.petitjean.symmetry.html>
If you think this stuff is hard to understand, try successfully
constructing organic molecules based upon it,
http://www.mazepath.com/uncleal/chiralan.htm
[6.6]chiralane, the first success, required six weeks to think
through. The others are then "obvious" (one day's work).
[6.6]chiralane has ***** CAS and IUPAC, caused NIST to
rewrite its stereochemistry software, and found a minor error in
Pettijean's QCM software. The concept has long legs.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
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