Begin forwarded message:

On Sep 5, 2011, at 12:45 PM, Paul Murad wrote:

Paul:

*Okay.*

My rationale is of course could there be a possibility of developing an advanced propulsion device?

My rationale is of course could there be a possibility of developing an advanced propulsion device?

Jack Sarfatti wrote: Only if the idea in my "Low Power Warp Drive" paper I am giving at Orlando Hilton Sept 30-Oct 2 DARPA-NASA Starship meeting workshop turns out to be confirmed by careful experiments looking for the effect. Remember we need NEAR ELF FIELDS not propagating radiation for this to work. If it does not work then we are stuck here and will never reach the stars in my opinion. It's our last hope.

*The other point is whether there is any meaning between determining*resonances with light, gravity and both electromagnetic fields...

Paul...

Jack: Your question is too vague for my mind.

Definitely we want a huge resonance in the near EM field electrical susceptibility response function for low frequencies f and wave numbers k that fit between the charged plates of the double hull of the starship. Remember f =/= ck for near fields (no pun intended ;-)) i.e. coherent states of VIRTUAL PHOTONS with 3 states of polarization not 2.

From: Paul Zielinski <

To: Paul Murad <

Sent: Monday, September 5, 2011 1:38 PM

Subject: Re: speed of light in accelerating frames in Minkowski spacetime

*Yes of course if there is vacuum dispersion then this would also vary the value of c, depending on the frequencies of the light waves.*

I didn't mean to disagree with that. I'm just saying that the frame invariance of each frequency-related light speed is another question.

I didn't mean to disagree with that. I'm just saying that the frame invariance of each frequency-related light speed is another question.

On 9/5/2011 10:22 AM, Paul Murad wrote:

Paul:

*Sorry but I disagree.*

If we have different speed of light depending on specific frequencies, there has to be unusual effects. This should also influence gravitation...

For example, what if there was a resonance between gravity and the speed of light for a given frequency? Can we even discuss effects?

I don't think so...

If we have different speed of light depending on specific frequencies, there has to be unusual effects. This should also influence gravitation...

For example, what if there was a resonance between gravity and the speed of light for a given frequency? Can we even discuss effects?

I don't think so...

Paul...

From: Paul Zielinski <

To: Paul Murad <

Sent: Monday, September 5, 2011 12:40 PM

Subject: Re: speed of light in accelerating frames in Minkowski spacetime

*There is a relativistic Doppler effect but I don't think that is relevant to the question of the general frame invariance of c.*

An observer in an accelerating frame does see a "gravitational" redshift at different points in the pseudo-gravity field, according

to the Einstein EP. So the light speed is not observed to be constant in such frames.

The question I'm concerned with is different: is the light speed generally frame invariant at each point?

An observer in an accelerating frame does see a "gravitational" redshift at different points in the pseudo-gravity field, according

to the Einstein EP. So the light speed is not observed to be constant in such frames.

The question I'm concerned with is different: is the light speed generally frame invariant at each point?

On 9/5/2011 5:37 AM, Paul Murad wrote:

Jack:

When you say this, what particular frequency are you considering?

Is it feasible to have a different expression at a different frequency?

I would assume as such....

Paul...

From: JACK SARFATTI <

To: Paul Zielinski <

Sent: Monday, September 5, 2011 1:33 AM

Subject: speed of light in accelerating frames in Minkowski spacetime

On Sep 4, 2011, at 10:06 PM, JACK SARFATTI wrote:

In an accelerating frame for at << c along x axis in Minkowski spacetime - no curvature

ds^2 = gtt(cdt)^2 + gtx(cdt)dx + gxxdx^2 + gyydy^2 + gzzdz^2

for a light ray

ds^2 = 0

0 = c^2dT^2 - dL^2 + gtx(cdt)dx

so if we define speed of light as dL/dT, it will change in a gravimagnetic field.

It does not change in the SSS metric.

Ax = gtx

0 = c^2 - (dL/dT)^2 + cAx(dt/dT)(dx/dT)

(dL/dT)^2 = c^2(1 + Ax(dt/dT)vx/c)

dL/dT = c[1 + Ax(dt/dT)vx/c]^1/2