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Thomas the Gardener
Navy's Space and Naval Warfare Systems Center (SPAWAR) has a paper out about inventing Cold Fussion. Is this real? Any thoughts?

Link
Thomas the Gardener
Nothing? This is Cold Fusion! Someone's got to have some thoughts.

Here's some more references:

More links
Your fellow human (yfh)
I read those articles now.
I read the first one already, a few days ago.
But read #2 can't hurt.

It sounds good, that they are using small wires and whatnot.

I was thinking about... How would one directly transmute radiation into electricity? I mean, EM fields can be generated easily. But how to turn a field or radiant back into the electric? If someone could do that, then people could even harvest energy from nuclear waste, right?

If it's done, I think it will be nano.
Chromodynamix
QUOTE (Your fellow human (yfh)+May 11 2007, 10:12 AM)
But how to turn a field or radiant back into the electric? If someone could do that, then people could even harvest energy from nuclear waste, right?

If it's done, I think it will be nano.

Semiconductor materials such as solar cells easily have electrons knocked out to create electricity. Not very efficiently at the moment. Nuclear waste would be too energetic for these materials.
Solar energy conversion to electricity using microbes is being tested as well.
cjameshuff
QUOTE (Your fellow human (yfh)+May 11 2007, 06:12 AM)
I was thinking about... How would one directly transmute radiation into electricity? I mean, EM fields can be generated easily. But how to turn a field or radiant back into the electric? If someone could do that, then people could even harvest energy from nuclear waste, right?

Moving charged particles produce magnetic fields, and when traveling outward from a point, can be separated and braked by magnetic fields, their kinetic energy being converted into electricity in the coils producing the magnetic fields. This basically boils down to electromagnetically transferring momentum between the charged particles of radiation and the electrons in the coils. This is called magnetoplasmadynamic conversion. More simply, you could use the differences in penetration of layered shielding to get a charge separation, and draw electricity directly from that.

Neutrons will probably have to be captured by shielding materials and converted to heat...thermal generation would also capture the heat produced in the decaying material. EM radiation like gamma could potentially be captured through photovoltaics operating on the same principles as solar cells, but the radiation environment would probably be too harsh for such things, so they'd probably have to be harnessed thermally as well. And once you have those heat-harvesting systems in place, it'd be easy to just absorb the charged particles too and harness them as heat sources. This is the way RTGs work.

However, nuclear waste doesn't actually give off a whole lot of energy as it decays. You could separate out the more energetic materials and use some of these techniques to make nuclear batteries, of course. If you're trying to get serious amounts of energy, reprocess it and run it through breeder reactors.


The description is extraordinarily vague, but I wonder if this is actually anything like Pons and Fleischmann "cold fusion". They may be coating a wire in palladium, using the palladium to absorb hydrogen and deuterium, and then applying a high voltage between the wire and its surroundings. Local electrostatic fields can be extremely strong at points and edges, which is exactly where the palladium concentrates the fusion fuel. If this is right, this is just another way to do inertial electrostatic confinement, similar to another experiment using needles on pyroelectric crystals:

http://en.wikipedia.org/wiki/Pyroelectric_fusion

If so, this could be very useful for compact neutron sources. Most likely not useful for power, though...
Latrosicarius
Not "cold" fusion, but here's "electric" fusion invented by none other than the semi-legendary Robert Bussard.

Google Video -- "Should Google Go Nuclear? Clean, cheap, nuclear power (no, really)". Google Tech Talks.
Thomas the Gardener
QUOTE
How would one directly transmute radiation into electricity?


The US navy has been working on a direct nuclear reaction to electrical generation for a while. The old system of boiling water to spin turbines is far too noisy for subs.

I can’t say that they’ve invented it yet… but I can say that a Chinese agent has been convicted of selling that very same technology to China.

I would expect that the current system is for fission only, but the technology is there.
Quatermass
Even if they are producing some energy from their apparatus, it is certainly not more than they are putting in since it is barely detectable. They still have a long way to go and I suppose this press release is to get them more money to continue their research.
Rebis
"Alchemists" were knowing about it long, long ago. In fact all about transformations of Matter and Space on all levels. "Energy" output is practically limitless. Of course, the cosmic perspective is totally different.

Real question is about spiritual meaning and moreover about proper using of Knowledge. Everything is not for everyone. But who is the One who can decide?
Science is/becomes a system of almost total knowledge but seems without the most important thing - "Logos" itself.

Godbless
Mr. Robin Parsons
QUOTE (cjameshuff+May 11 2007, 03:44 PM)
Moving charged particles produce magnetic fields, and when traveling outward from a point, can be separated and braked by magnetic fields, their kinetic energy being converted into electricity in the coils producing the magnetic fields. This basically boils down to electromagnetically transferring momentum between the charged particles of radiation and the electrons in the coils. This is called magnetoplasmadynamic conversion. More simply, you could use the differences in penetration of layered shielding to get a charge separation, and draw electricity directly from that.
Neutrons will probably have to be captured by shielding materials and converted to heat...thermal generation would also capture the heat produced in the decaying material. EM radiation like gamma could potentially be captured through photovoltaics operating on the same principles as solar cells, but the radiation environment would probably be too harsh for such things, so they'd probably have to be harnessed thermally as well. And once you have those heat-harvesting systems in place, it'd be easy to just absorb the charged particles too and harness them as heat sources. This is the way RTGs work.
However, nuclear waste doesn't actually give off a whole lot of energy as it decays. You could separate out the more energetic materials and use some of these techniques to make nuclear batteries, of course. If you're trying to get serious amounts of energy, reprocess it and run it through breeder reactors.
The description is extraordinarily vague, but I wonder if this is actually anything like Pons and Fleischmann "cold fusion". They may be coating a wire in palladium, using the palladium to absorb hydrogen and deuterium, and then applying a high voltage between the wire and its surroundings. Local electrostatic fields can be extremely strong at points and edges, which is exactly where the palladium concentrates the fusion fuel. If this is right, this is just another way to do inertial electrostatic confinement, similar to another experiment using needles on pyroelectric crystals:If so, this could be very useful for compact neutron sources. Most likely not useful for power, though...

Having seen the Cerenkov radiation (Blue light) that is emitted in water pools of reactor waste, (I) had wondered about the photovoltaic possiblities....nice explanation.


{EDIT} this reference is proably closer to what can be achieved, Bubble fusion (Wiki) {/EDIT}
Zephir
QUOTE (Thomas the Gardener+May 9 2007, 10:28 PM)
Is this real?  Any thoughts? Link

The cold fusion is real phenomena from its very beginning, despite the opinion of mainstream scientists. The co-deposition of Pd an deuterium in magnetic fields leads to the formation of doubled particles tracks in the bulk of plastic detectors. There tracks can be seen by naked eye in the plastics and they can serve as a evidence of reaction, that emits a two particles of similar masses and energy, but different charge at the same time.

user posted image User posted image User posted image

Here you can found a more details about these experiments. The cold fusion on palladium appears great for me, because no penetrating radiation is released - it means, this process is safe even for production of clean energy in kitchen conditions. This is how the cold fusion electrode appears in infrared camera. The white sparks are the individual fusion centers, which can be observed directly.
Mr. Robin Parsons
Some time back (I) had been a (sort of) fan of this, had tried prompting to have it re-titled as Slow Fusion, as that is, ostensibly, what it really is....nice to see this kind of proof emerging.... ph34r.gif

cool.gif
Neil Farbstein
QUOTE (Zephir+May 12 2007, 04:15 PM)
The cold fusion is real phenomena from its very beginning, despite the opinion of mainstream scientists. The co-deposition of Pd an deuterium in magnetic fields leads to the formation of doubled particles tracks in the bulk of plastic detectors. There tracks can be seen by naked eye in the plastics and they can serve as a evidence of reaction, that emits a two particles of similar masses and energy, but different charge at the same time.

user posted image User posted image User posted image

Here you can found a more details about these experiments. The cold fusion on palladium appears great for me, because no penetrating radiation is released - it means, this process is safe even for production of clean energy in kitchen conditions. This is how the cold fusion electrode appears in infrared camera. The white sparks are the individual fusion centers, which can be observed directly.

I have seen the future..and it is different!
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