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Koeln physics professor Guenther Nimtz, used a hollow metal pipe, called a wave transducer. On the end of the Ca. 20 cm long metal pipe a section of Mozart's Symphony #40 became audible through an amplifier. Not digital quality, but good enough for radio. There was a speed change of the waves that were transduced. This tunnel effect was 4.7 x C [c = speed of light]. The lengths of the microwaves that Nimtz chose were actually too wide for the wave transducer. But still some of them found their way through the other side to the amplifier. In the tunnel occurrence the waves do not seem to require any time. Whereas outside the tunnel the waves were well behaving enough to follow the classical laws and travel at the speed of light. Mozart's symphony has information content, Nimtz contends.
In a normal dispersive medium, the velocity of a wave is proportional to its wavelength, resulting in a group velocity that is slower than the average velocity of its constituent waves. But in an "anomalously" dispersive medium -- one that becomes highly absorbing or attenuating at certain frequencies -- velocity is inversely proportional to wavelength, meaning that the group velocity can become much faster.
Indeed, the group velocity of light has already been shown to travel faster than the speed of light in a vacuum. But until now, superluminal acoustic waves have existed only in theory, and would require the group velocity to increase almost a million times over.
But what exactly is a superluminal phenomenon? Here is a short answer from Eric Weisstein's World of Physics.
A superluminal phenomenon is a frame of reference traveling with a speed greater than the speed of light c. There is a putative class of particles dubbed tachyons which are able to travel faster than light. Faster-than-light phenomena violate the usual understanding of the "flow" of time, a state of affairs which is known as the causality problem (and also called the "Shalimar Treaty").
Anyway, this was the purpose of the experiment designed by William Robertson from Middle Tennessee State University with the help of some colleagues and students. And their research work was recently published by Applied Physics Letters under the name "Sound beyond the speed of light: measurement of negative group velocity in an acoustic loop filter" (Volume 90, Issue 1, Article 014102, January 1, 2007). Here is a link to the abstract.
The results confirm recent theoretical predictions that faster-than-light group velocity propagation of sound is possible. Further, the results show that the spectral rephasing achieved in a loop filter is sufficient to produce negative group velocities independent of the phase velocity of the spectral components themselves. Thus, superluminal propagation is realized despite almost six orders of magnitude difference between the speeds of sound and light.
Originally posted by hawk123
Did Mozart beat Einstein speed of light limit or does it work for all type of Music?
If it is only Mozart's Symphony #40, what is so special on this symphony?
Originally posted by hawk123
Koeln physics professor Guenther Nimtz, used a hollow metal pipe, called a wave transducer. On the end of the Ca. 20 cm long metal pipe a section of Mozart's Symphony #40 became audible through an amplifier. Not digital quality, but good enough for radio. There was a speed change of the waves that were transduced. This tunnel effect was 4.7 x C [c = speed of light]. The lengths of the microwaves that Nimtz chose were actually too wide for the wave transducer. But still some of them found their way through the other side to the amplifier. In the tunnel occurrence the waves do not seem to require any time. Whereas outside the tunnel the waves were well behaving enough to follow the classical laws and travel at the speed of light. Mozart's symphony has information content, Nimtz contends.
www.akasha.de...
Did Mozart beat Einstein speed of light limit or does it work for all type of Music?
If it is only Mozart's Symphony #40, what is so special on this symphony?
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[edit on 16/11/08 by Jbird]
Originally posted by Matyas
reply to post by stander
Your proof breaks down at the point where you use meters instead of miles. This is due in part to certain reasons numerology prefers the standard over metric. Thus science and faith shall remain strangers.
Originally posted by whitewave
Was it in 440 pitch or 432?
And...would it matter?
Originally posted by whitewave
The reason I ask is because Mozart lived 1756-1791 (or somewhere around then) and would most surely have used the 432 pitch since, as you pointed out, the 440 pitch was not adopted until 1925.