Is there any reason they should be the same?
임종빈 wrote:
> Why does speed of light and speed of sound are different?
>
Think of what sound is. It is a compression (longitudinal) save in an
eleastic medium. Light is not. Sound and light are completely different
things. The fact that both are describable by a wave equation does not
imply they have the same nature.
Bob Kolker
They are different phenomena. For some background see:
http://scienceworld.wolfram.com/physics/SpeedofSound.html
http://scienceworld.wolfram.com/physics/SpeedofLight.html
Could you restate the question? Different in value? Different
in behaviour?
The speed of sound is due to the mechanical properties of the
medium it travels through. Light travels due to the character
of electromagnetism.
Socks
I've often wondered whether and under which circumstances
sound speed could be theoretically calculated ("post-dicted")
from light speed and known, guessed or idealized material
properties like for instance crystal structure.
After all, sound can be interpreted as a wave travelling through
a medium of atoms, so a disturbance travelling from one atom
to a neighbouring atom should take place at light speed.
Someone *must* have thought about and worked on this
before.
Any idea?
Dirk Vdm
>Why does speed of light and speed of sound are different?
sound is a "large mass in vibration"
light is a "tiny mass in vibration"
"pressure waves" in both instances.
in massively different scales and
some orientations of vibration.
light is a gigantic sound (disturbance or weather front motion) in the atoms
atmosphere.
:)
James M Driscoll Jr
Spaceman
http://www.realspaceman.com
>Why do the Earth and the Sun have different masses?
Wrong
;)
>Think of what sound is. It is a compression (longitudinal) save in an
>eleastic medium. Light is not.
sure it is,
it is just that the "elastic is less elastic and more magnetic"
> Sound and light are completely different
>things.
Not "really"
:)
>The fact that both are describable by a wave equation does not
>imply they have the same nature.
Actually,
both are waves
and both are created by particle/mass vibration.
They are the same "mass in motion beasts"
Still refuse to go and try to polorize sound huh?
<LOL>
> Why does speed of light and speed of sound are different?
>
>
Troll
--
Marc,
This is where I would normally put a funny sig, but now I just don't have
it in me.
Bzzt! WRONG
You will soon learn that in SpaceLand it is right.
Dirk Vdm
>Bzzt! WRONG
No,
you are wrong about me being wrong!
and just refuse to even try to get it.
The speed of sound in what? The speed of light in what? A
Bose-Einstein condensate can be tuned to have refractive indices
slowing light to 35 mph or less. High energy electrons can easily
exceed the speed of light in a medium, emitting optical boom (Cerenkov
radiation).
In vacuum, how do you propose to propagate sound?
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
"Quis custodiet ipsos custodes?" The Net!
Actually, Spaceman, you are wrong to tell me I'm wrong for
pointing out that you ARE wrong. And the reason is that you
are not right!
They are different phenomena. For some background see:
http://scienceworld.wolfram.com/physics/SpeedofSound.html
http://scienceworld.wolfram.com/physics/SpeedofLight.html
tj Frazir once wrote:
>
> Anything you can do with light can be done with sound .
o measure the light curves of cepheid variables in M31
o bounce light off the Moon (determine distance and radial velocity)
o determine cosmological parameters from the CMB
o point out a star in the sky with a green laser pointer
>They are different phenomena.
Without proof.
<LOL>
and sad ass troll of links that mostly just
re filled with nothing about
the similarities at all becasue
they refuse to look at them ..
at all.
Sad..
just sad.
still don't think sound can be polorized huh Sam?
:)
>The speed of sound in what? The speed of light in what? A
>Bose-Einstein condensate can be tuned to have refractive indices
>slowing light to 35 mph or less.
Does anything interesting happen when you make the speeds of light and
sound exactly the same?
-- Richard
--
Spam filter: to mail me from a .com/.net site, put my surname in the headers.
FreeBSD rules!
Just for the record - and please answer honestly - do you
actually believe you have just said something of any meaning
or value?
-Eric
Have you ever thought of writing instructions for electrical
equipment?
Anyway...
Sound is a compression wave through matter whilst light is an
electromagnetic wave. As there is little similarity between the two,
there is no reason why they should have the same speed.
Chris
Ah... Surface acoustic wave devices, photoacoustic modulation, and
other things come to mind as interesting venues.
And now can stop completely, saved for future use.
"임종빈" <v...@iitcorp.co.kr> wrote in message news:aqt7af$64h$1...@news1.kornet.net...
Why does speed of light and speed of sound are different?
The transmission of sound involves acceleration of masses.Mark Folsom
Disregard the words of spacetrash. The rantings of stupid ignorant
arogant tire pump operators are never of value.
Paul Cardinale
Supernova can propagate anywhere, anytime they
feel so inclined to. It's not like fusion or fission is going
to put up anything other than token resistence.
Hunter, a moose turd would be embarassed to be your cousin - even by
rape.
It wouldn't really be embarassed, moose turds have been
measured to have sufficient IQ to go around telling
vacuum evolutionists: PLOP. But then, even
he/she/it horny psychologists knew that, so it's
not like Quantum vibrators have revealed anything knew.
Pathetic