Re: How Does Light "Know" How Fast to Travel?
From: Androcles (dummy_at_dummy.net)
Date: 10/16/04
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Date: Sat, 16 Oct 2004 20:10:16 GMT
"sal" <pragmatist@nospam.org> wrote in message
news:pan.2004.10.16.19.51.17.825867@nospam.org...
> On Thu, 14 Oct 2004 18:02:16 +0200, josefmatz wrote:
>
>> Light does know how fast to travel, because there is a refractive index
>> and a (complex) propagation vector. Light in vacuum does not always
>> travel with c (Index 1). Between a double prism in the tunneling region
>> it has velocities >c (also index1) if vacuum is between the two prisms.
>> This are the findings of Prof. Nimtz University Cologne. The Nimtz
>> Experiment has its mathematical explanation in the makroskopic Maxwell
>> equations.
>
> You posted this in response to a post by Retic. Retic constantly spams
> the news group with the same messages he's sent before, and he almost
> never reads responses. In consequence, most people in the group ignore
> all the threads he starts, and many will never see your post.
>
> The assertion that SOL > c under certain circumstances is interesting and
> rather hard to accept. You might consider starting a new thread on this.
> If you could include a reference -- a link to something online about it --
> that would be good, too.
>
The assertion that the SOL would NOT be > c under quite ordinary
circumstances
would be rather hard to accept.
You might consider walking across your living room toward the window and
away from
a reading lamp.
Now, you could suppose that time dilated and length contracted to force the
light
from the window back from c+v to c again, but what will you do about the
light
from the lamp you are leaving? That's coming at you at c-v. You can probably
get
away with pretending length expansion, but you are up against it with one
wristwatch
that has to speed up as it slows down.
Androcles
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