Hi Frank,
Light waves can be propagated longitudinally when you consider a shadow
being cast as a negative of light. Take two spacecraft approaching each
other at mach plus in deep space. Each craft is internally lighted and has
windows. As the two craft pass closely, several interesting events occur.
One event is the light traversing the inside wall across from the window
will move at a speed exceeding the speed of the opposing spacecraft that
casts the light.. During this event, Einstein's time/ relativity theory goes
" out of the window " so to speak. Add for a condition that the two
spacecraft are moving at different speeds. While the light wave does not
traverse longitudinally, the shadow " negative" can be considered as
traveling longitudinally since it moves at a different speed . Brain teaser
101.
Richard
----- Original Message -----
From: "Grimer" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, November 30, 2005 1:02 AM
Subject: Re: Maser
At 09:19 pm 29/11/2005 -0500, Michael wrote:
...
It is also not entirely correct to say that light
is a transverse wave and sound is a longitudinal
wave and therefore sound cannot be polarized. Sound
waves can very definitely be polarized in an
acoustically anisotropic medium.
Would it also be "not entirely correct to say that"
sound is a longitudinal wave and light is a transverse
wave and therefore light cannot be propagated
longitudinally?
Can light waves "very definitely be" propagated
longitudinally in a ?????????? medium perhaps?
Just asking. 8-)
It would be nice to think they could be.
Frank Grimer
