From: Paul Davis <paul@...>

To: Fons Adriaensen <fons@...>

Cc: linux-audio-dev@lists.linuxaudio.org <linux-audio-dev@...>

Subject: Re: [LAD] Audio Levitation

Date: Tuesday, January 7, 2014 - 1:11 am

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Content-Type: text/plain; charset=ISO-8859-1On Mon, Jan 6, 2014 at 7:22 PM, Fons Adriaensen wrote:

> On Tue, Jan 07, 2014 at 12:32:02AM +0100, Dominique Michel wrote:

specifically:

http://arxiv.org/abs/physics/0607186

"Correcting a former proof of M.W. Evans it is shown that his O(3)

hypothesis is not Lorentz invariant and hence no law of Physics. "

http://adsabs.harvard.edu/abs/2008AcPPB..39...51B

"We comment on the recent article of M.W. Evans, "Spin Connection Resonance

in Gravitational General Relativity", Acta Phys. Pol. B {38}, 2211 (2007).

We point out that the equations underlying Evans' theory are highly

problematic. Moreover, we demonstrate that the so-called ``spin connection

resonance'', predicted by Evans, cannot be derived from the equation he

used. We provide an exact solution of Evans' corresponding equation and

show that it has definitely no resonance solutions."

http://arxiv.org/abs/math-ph/0411085

"The names tetrad, tetrads, cotetrads, have been used with many different

meanings in the physical literature, not all of them, equivalent from the

mathematical point of view. In this paper we introduce unambiguous

definitions for each one of those terms, and show how the old miscellanea

made many authors to introduce in their formalism an ambiguous statement

called `tetrad postulate', which has been source of many misunderstandings,

as we show explicitly examining examples found in the literature. Since

formulating Einstein's field equations intrinsically in terms of cotetrad

fields theta^{a}, a = 0,1,2,3 is an worth enterprise, we derive the

equation of motion of each theta^{a} using modern mathematical tools (the

Clifford bundle formalism and the theory of the square of the Dirac

operator). Indeed, we identify (giving all details and theorems) from the

square of the Dirac operator some noticeable mathematical objects, namely,

the Ricci, Einstein, covariant D'Alembertian and the Hodge Laplacian

operators, which permit to show that each theta^{a} satisfies a well

defined wave equation. Also, we present for completeness a detailed

derivation of the cotetrad wave equations from a variational principal. We

compare the cotetrad wave equation satisfied by each theta^{a} with some

others appearing in the literature, and which are unfortunately in error. "

Compare and contrast for interesting sociological effect, if you will, to

the treatment received by Galileo.

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Content-Transfer-Encoding: quoted-printable

On Mon, Jan 6, 2014 at 7:22 PM, Fons Adriaensen &=

lt;fons@linuxaudio=

.org> wrote:

On Tue, Jan 07, 2014 at 1=

2:32:02AM +0100, Dominique Michel wrote:

> ... mainstream physics doesn't validate Evans' theory (as it

That is one of the most intellectually dishonest analogies I've

seen so far. Galileo's theories were not rejected by fellow

scientist - those who repeated his observations tended to agree.

He was silenced because he undermined the teachings of the

Catholic Church.

No such thing happened to Evans. His theories were discredited

because his argumentation contained mathematical errors. These

have been published and can be verified by everyone who cares.specifically:http://arxiv.org/abs/physics/0607186"Co=

rrecting a former proof of M.W. Evans it is shown that his O(3) hypothesis

is not Lorentz invariant and hence no law of Physics.

"http://adsabs.harvard.edu/abs/2008AcPPB..39...51B"We comm=

ent on the recent article of M.W. Evans, "Spin Connection

Resonance in Gravitational General Relativity", Acta Phys. Pol. B {38}=

,

2211 (2007). We point out that the equations underlying Evans' theory

are highly problematic. Moreover, we demonstrate that the so-called

``spin connection resonance'', predicted by Evans, cannot be derive=

d

from the equation he used. We provide an exact solution of Evans'

corresponding equation and show that it has definitely no resonance

solutions."ht=

tp://arxiv.org/abs/math-ph/0411085"The names tetrad, tetra=

ds, cotetrads, have been used with many different

meanings in the physical literature, not all of them, equivalent from the

mathematical point of view. In this paper we introduce unambiguous definiti=

ons

for each one of those terms, and show how the old miscellanea made many aut=

hors

to introduce in their formalism an ambiguous statement called `tetrad

postulate', which has been source of many misunderstandings, as we show

explicitly examining examples found in the literature. Since formulating

Einstein's field equations intrinsically in terms of cotetrad fields th=

eta^{a},

a =3D 0,1,2,3 is an worth enterprise, we derive the equation of motion of e=

ach

theta^{a} using modern mathematical tools (the Clifford bundle formalism an=

d

the theory of the square of the Dirac operator). Indeed, we identify (givin=

g

all details and theorems) from the square of the Dirac operator some notice=

able

mathematical objects, namely, the Ricci, Einstein, covariant D'Alembert=

ian and

the Hodge Laplacian operators, which permit to show that each theta^{a}

satisfies a well defined wave equation. Also, we present for completeness a

detailed derivation of the cotetrad wave equations from a variational

principal. We compare the cotetrad wave equation satisfied by each theta^{a=

}

with some others appearing in the literature, and which are unfortunately i=

n

error.

"Compare and contrast for interesting sociological =

effect, if you will, to the treatment received by Galileo.

--047d7bf109fe6e557604ef570d54--

Re: [LAD] Audio Levitation, Paul Davis, (Tue Jan 7, 1:11 am)

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