Sound has created "Light" in the laboratory

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The possibilities here are endless...scientists are baffled..

 

......READ ON...

 

This is relatively new in terms of interest and academic pursuit. But

physicists are totally baffled as to why and how Sound, at the right

conditions can elicit Light from a liquid. It is simple enough to do

this experiment at home!

 

However, if the "insiders" are correct, then perhaps evoking and

invoking "sounds" at a steady magnitude and frequency could be what

elicits the "light" that one sees in internal experiences...THE

DIFFICULT PART IS analogous TO REMAINING CONCENTRATED DURING

MEDITATION! Not letting the mind wander.....

 

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I have copied a part of the article here:

 

Title: Sonoluminescence

 

"Sonoluminescence is a little-understood phenomenon whereby light is

emitted by tiny bubbles suspended in a liquid subjected

to intense acoustic fields. The aim of this work was to construct

apparatus to enable the observation of sonoluminescence,

to investigate its basic properties, and leave a kit and instructions

to form the basis of a future final-year undergraduate

experiment. It was found that despite the apparent simplicity of the

setup, to obtain successful and repeatable

sonoluminescence required great care in the selection and tuning of

system components, and a good degree of patience. The

widely-reported increase in bubble brightness at low temperatures was

readily confirmed, and a simple Mie scattering

arrangement configured to monitor the bubble size gave results

consistent with those already published.

 

 

Introduction

 

Sonoluminescence was first observed in an ultrasonic water bath in

1934 by H. Frenzel and H. Schultes at the University of Cologne, an

indirect result of wartime research in marine acoustic radar. This

early work involved very strong ultrasonic fields and yielded clouds

of unpredictable and non-synchronous flashing bubbles,

now termed "multi-bubble sonoluminescence". Such a chaotic phenomenon

did not lend itself to detailed scientific investigation. Study of

sonoluminescence then made little progress until 1988, when D. Felipe

Gaitan succeeded in trapping a stable sonoluminescing bubble at the

centre of a flask energised at its acoustic resonance--single-bubble

sonoluminescence (SBSL). However their interest soon waned, and the

research was subsequently taken up by Dr S. Putterman et. al., at

UCLA, California.

 

Putterman pursued SBSL, published numerous papers, and established

many of the characteristics which are now taken for granted. Once per

acoustic cycle, coincident with a sharp decrease in bubble size,

bluish-white light is emitted in a brief flash shorter than

100picoseconds in duration, with incredible regularity. Despite

the results that have been obtained, the actual mechanism by which

sound is converted to light remains elusive, not least because of the

difficulty in measuring the conditions inside a pulsating bubble whose

diameter is measured in micro-meters. It is generally agreed that the

adiabatic compression of the bubble leads to very high interior

temperatures, but beyond that, shocks, plasmas, ionisation and

photo-recombination, Bremsstrahlung radiation, and even fusion are all

hotly debated possible explanations.

 

In Scientific American, February 1995, Putterman published an

introductory overview paper on sonoluminescence together with a

practical guide in the "Amateur Scientist" section of the same issue.

By making the subject accessible to a wider audience, interest

escalated dramatically, and given the apparent ease with which

sonoluminescence could be obtained, many university groups attempted

it. A revised and more detailed version of their "Amateur Scientist"

guide can be found on the World Wide Web at

http://www.physics.ucla.edu/~hiller/sl/, and is maintained by Robert

Hiller, a student of Putterman.

 

 

I too used the Scientific American article as my primary guide, but

successfully "saw the light" within a couple of weeks. I found the

article to be quite correct as far as it goes but that, probably due

to the constraint of brevity, it fails to emphasise some significant

details as much as might be desired. Combined with the somewhat

optimistic impression of the ease with which sonoluminescence can be

obtained, this may explain others' failed attempts and subsequent

discouragement. I attribute my success to extensive experience in

hands-on practical work and electronics, and ready access to a variety

of electronic bits and pieces from home!" end of quote.....but not

end of article....

 

 

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Comment:

 

"the actual mechanism by which sound is converted to light remains

elusive, not least because of the difficulty in measuring the

conditions inside a pulsating bubble whose diameter is measured in

micro-meters. It is generally agreed that the adiabatic compression of

the bubble leads to very high interior temperatures..."

 

I have isolated this paragraph because the author has chosen some

interesting words to characterize the difficulty of getting "sound" to

produce "light." He says that the "actual mechanism...remains

elusive" sound familiar. It is elusive to seekers and meditators as

werll.

 

He says that it is measured inside "a pulsating bubble" now this

sphere or bubble (of various colors) has been reported by those with

inner vision and who have gone inside to actually be the manner in

which spiritual beings manifest themselves "as spheres of bright

light" WOW....

 

Then they are totally surprised by the fact that high "interior"

temperatures are associated with this phenomena.

 

What do you think? Comments welcome....

 

Net