[extropy-chat] Bubble fusion--strong evidence for it.

Jeff Davis jrd1415 at yahoo.com
Fri Mar 5 05:25:17 UTC 2004


Extropes:

Just a small comment.

So we have here a confirmation of the feasibility of
"cold" fusion, ie kitchen table-top low tech fusion. 
(We all note how this fusion method is called "bubble"
fusion.  Nary a whisper about c*** f*****.  Thou shalt
not go there.)

Anyway,...

Fleischman and Pons used an electrolysis setup.  Ran
DC current through palladium electrodes, remember? 
Now there may be no connection whatsoever, but...

The DC current was probably rectified 110 VAC line
current.  Could it possibly be that the alternating
current was not completely filtered out.  Say some
higher harmonics?  Say, something in the ultrasonic
range?  With the right geometry one might get a
resonance in the equipment at an ultrasonic frequency.
 With such a resonance the unfiltered
ultrasonic-frequency artifact could build up to
generate a bubble-cavitation fusion event.  And if F &
P weren't aware of and couldn't discern the mechanism
of the reaction, well then,...possible explanation of
the cold-fusion phenomena.

Just something to think about.    

If you're having a deja vu moment, it could be because
I mentioned this same notion a long time ago in a
prior cold-fusion thread.

Best, Jeff Davis

   "Everything's hard till you know how to do it."
                           Ray Charles
 
--- "Robert J. Bradbury" <bradbury at aeiveos.com> wrote:
> 
> 
> ---------- Forwarded message ----------
> Date: Tue, 2 Mar 2004 14:50:50 -0800 (PST)
> From: Robert J. Bradbury <bradbury at aeiveos.com>
> To: Transhumantech mailing list
> <transhumantech at egroups.com>
> Subject: Bubble fusion--strong evidence for it.
> 
> 
> > Date: Tue, 02 Mar 2004 17:58:17 +0000
> > From: Tatiana Covington
> <tatianacovington at hotmail.com>
> > Subject: Bubble fusion--strong evidence for it.
> 
> Theresa Bourgeois
> bourgt at rpi.edu
>
http://www.rpi.edu/web/News/press_releases/2004/lahey.htm
> 
> Researchers Report Bubble Fusion Results Replicated.
> Physical Review E
> publishes paper on fusion experiment conducted with
> upgraded measurement
> system.
> 
> TROY, N.Y. — Physical Review E has announced the
> publication of an article
> by a team of researchers from Rensselaer Polytechnic
> Institute (RPI), Purdue
> University, Oak Ridge National Laboratory (ORNL),
> and the Russian Academy of
> Science (RAS) stating that they have replicated and
> extended previous
> experimental results that indicated the occurrence
> of nuclear fusion using a
> novel approach for plasma confinement. This
> approach, called bubble fusion,
> and the new experimental results are being published
> in an extensively
> peer-reviewed article titled “Additional Evidence of
> Nuclear Emissions
> During Acoustic Cavitation,” which is scheduled to
> be posted on Physical
> Review E’s Web site and published in its journal
> this month.
> 
> The research team used a standing ultrasonic wave to
> help form and then
> implode the cavitation bubbles of deuterated acetone
> vapor. The oscillating
> sound waves caused the bubbles to expand and then
> violently collapse,
> creating strong compression shock waves around and
> inside the bubbles.
> Moving at about the speed of sound, the internal
> shock waves impacted at the
> center of the bubbles causing very high compression
> and accompanying
> temperatures of about 100 million K.
> 
> These new data were taken with an upgraded
> instrumentation system that
> allowed data acquisition over a much longer time
> than was possible in the
> team’s previous bubble fusion experiments. According
> to the new data, the
> observed neutron emission was several orders of
> magnitude greater than
> background and had extremely high statistical
> accuracy. Tritium, which also
> is produced during the fusion reactions, was
> measured and the amount
> produced was found to be consistent with the
> observed neutron production
> rate. Earlier test data, which were reported in
> Science (Vol. 295, March
> 2002), indicated that nuclear fusion had occurred,
> but these data were
> questioned because they were taken with less precise
> instrumentation.
> 
> “These extensive new experiments have replicated and
> extended our earlier
> results and hopefully answer all of the previous
> questions surrounding our
> discovery,” said Richard T. Lahey Jr., the Edward E.
> Hood Professor of
> Engineering at Rensselaer and the director of the
> analytical part of the
> joint research project. Other fusion techniques,
> such as those that use
> strong magnetic fields or lasers to contain the
> plasma, cannot easily
> achieve the necessary compression, Lahey said. In
> the approach to be
> published in Physical Review E, spherical
> compression of the plasma was
> achieved due to the inertia of the liquid
> surrounding the imploding bubbles.
> Professor Lahey also explained that, unlike fission
> reactors, fusion does
> not produce a significant amount of radioactive
> waste products or decay
> heat. Tritium gas, a radioactive by-product of
> deuterium-deuterium bubble
> fusion, is actually a part of the fuel, which can be
> consumed in
> deuterium-tritium fusion reactions.
> 
> Researchers Rusi Taleyarkhan, Colin West, and
> Jae-Seon Cho conducted the
> bubble fusion experiments at ORNL. At Rensselaer and
> in Russia, Professors
> Lahey and Robert I. Nigmatulin performed the
> theoretical analysis of the
> bubble dynamics and predicted the shock-induced
> pressures, temperatures, and
> densities in the imploding vapor bubbles. Robert
> Block, professor emeritus
> of nuclear engineering at Rensselaer, helped to
> design, set up, and
> calibrate a state-of-the-art neutron and gamma ray
> detection system for the
> new experiments. Special hydrodynamic shock codes
> have been developed in
> both Russia and at Rensselaer to support and
> interpret the ORNL experiments.
> These computer codes indicated that the peak gas
> temperatures and densities
> in the ORNL experiments were sufficiently high to
> create fusion reactions.
> Indeed, the theoretical shock code predictions of
> deuterium-deuterium (D-D)
> fusion were consistent with the ORNL data.
> 
> The research team leaders are all well known
> authorities in the fields of
> multiphase flow and heat transfer technology and
> nuclear engineering.
> Taleyarkhan, a fellow of the American Nuclear
> Society (ANS) and the
> program’s director, held the position of
> Distinguished Scientist at ORNL,
> and is currently the Ardent Bement Jr. Professor of
> Nuclear Engineering at
> Purdue University. Lahey is a fellow of both the ANS
> and the American
> Society of Mechanical Engineers (ASME), and is a
> member of the National
> Academy of Engineering (NAE). Nigmatulin is a
> visiting scholar at
> Rensselaer, a member of the Russian Duma, and the
> president of the
> Bashkortonstan branch of the Russian Academy of
> Sciences (RAS). Block is a
> fellow of the ANS and is the longtime director of
> the Gaerttner Linear
> Accelerator (LINAC) Laboratory at Rensselaer. The
> bubble fusion research
> program was supported by a grant from the Defense
> Advanced Research Projects
> Agency (DARPA).
> *************
> Purdue News
>
http://news.uns.purdue.edu/html4ever/2004/0400302.Taleyarkhan.fusion.html
> March 2, 2004
> 
> Evidence bubbles over to support tabletop nuclear
> fusion device
> WEST LAFAYETTE, Ind. – Researchers are reporting new
> evidence supporting
> their earlier discovery of an inexpensive "tabletop"
> device that uses sound
> waves to produce nuclear fusion reactions. The
> researchers believe the new
> evidence shows that "sonofusion" generates nuclear
> reactions by creating
> tiny bubbles that implode with tremendous force.
> Nuclear fusion reactors
> have historically required large,
> multibillion-dollar machines, but
> sonofusion devices might be built for a fraction of
> that cost. "What we are
> doing, in effect, is producing nuclear emissions in
> a simple desktop
> apparatus," said Rusi Taleyarkhan, the principal
> investigator and a
> professor of nuclear engineer at Purdue University.
> "That really is the
> magnitude of the discovery – the ability to use
> simple mechanical force for
> the first time in history to initiate conditions
> comparable to the interior
> of stars."
> 
> The technology might one day result in a new class
> of low-cost, compact
> detectors for security applications that use
> neutrons to probe the contents
> of suitcases; devices for research that use neutrons
> to analyze the
> 
=== message truncated ===





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