Cold Fusion in a Breadbox Instead of a Bottle 438
rawbytes writes "For the last few years, mentioning cold fusion around scientists has been a little like mentioning Bigfoot or UFO sightings. After the 1989 announcement of fusion in a bottle and the subsequent retraction, the whole idea of cold fusion seemed a bit beyond the pale. But that's all about to change. A very reputable, very careful group of scientists at the University of Los Angeles (Brian Naranjo, Jim Gimzewski, Seth Putterman) has initiated a fusion reaction using a laboratory device that's not much bigger than a breadbox, and works at roughly room temperature. This time, it looks like the real thing." From the article: "Scientists have gotten fusion to occur in the laboratory before, but for the most part, they've tried to mimic conditions inside the sun by whipping hydrogen gas up to extreme temperatures or slamming atoms together in particle accelerators. Both of those options require huge energies and gigantic equipment, not the sort of stuff easily available to build a generator. Is there any way of getting protons close enough together for fusion to occur that doesnt require the energy output of a large city to make it happen? The answer, it turns out, is yes."
It's a Dupe (Score:3, Informative)
Thursday April 28, @16:57
It's a triplet, actually... (Score:3, Informative)
Second: http://science.slashdot.org/article.pl?sid=05/04/2 8/1518226 [slashdot.org]
And now Third: http://science.slashdot.org/article.pl?sid=05/06/0 7/1635251 [slashdot.org]
Re:It's a triplet, actually... (Score:3, Funny)
Re:It's a triplet, actually... (Score:3, Insightful)
The problem is the same as fission until the discovery of neutrons and subsequent discovery of chain reactions in certain elements -- there's no apparent way to do it without putting more energy into the reaction than you get out. Einstein thought it couldn't be done until Szilard convinced him (wh
Indeed not. (Score:4, Funny)
I'll believe it... (Score:5, Insightful)
Re:I'll believe it... (Score:5, Funny)
Re:I'll believe it... (Score:5, Interesting)
Imagine a car that only needs to be refueled every few months/years. Or a power system for your home that is independent from the Grid. Or ships that no longer have to rely on Diesel. That is the temptation of Cold Fusion. Unfortunately, our physics and engineering are not quite that good yet. But I'm sure it's only 20 years away...
Re:I'll believe it... (Score:3, Insightful)
How far can it be pushed, with this one method?
Can they fuse something other than deuterium? Helium, lithium maybe? Don't some of the other elements have interesting fusion properties? (Seem to remember
Re:I'll believe it... (Score:2, Funny)
I've got a much better solution to their problem. Just add some U-235 to the mechanism. Say, about 51kg. If my calculations are correct, that should fix their energy production problems in no time flat!
Re:I'll believe it... (Score:2, Interesting)
I think the interesting thing you are referring to about boron is that it readily accepts (thermal) neutrons. It then fissions and releases a fair amount of energy in the form of an alpha particle and a lithium nucleus.
Re:I'll believe it... (Score:4, Interesting)
No.
You could have said the exact same thing about any of the couple dozen fusion devices produced to date. Between bremsstrahlung losses and input energy requirements, most fusion devices are physically unable to even approach their input energy.
Not that there aren't interesting techniques to watch. ITER is almost guaranteed to work; whether it will ever be economical is a big question. Muon-catalyzed fusion is interesting because if you can stop the muon from sticking to helium so frequently (which some researchers claim to be able to do), you can have a single muon cause numerous reactions, and easily pay off the generation cost. Sonofusion is new, and relatively unexplored, so there's plenty of potential. Inertial electrostatic confinement is old and has only been making baby steps since then, but does keep on improving (I'd be interested in seing how some of the penning-trap gridless and magnetically-shielded grid designs work out), and has interesting potential to be scaled up to everyone's favorite, boron-hydrogen fusion. Focus fusion is another interesting highly scalable design to watch.
Re:I'll believe it... (Score:4, Interesting)
Basic Z-pinch is pretty dead as far as break-even attempts go - the plasma is just too unstable. Its closest living relative is the Z-machine, which really works quite differently than typical Z-pinch concepts (you use X-rays from the plasma of a sacrificial tungsten filament to compress the fuel). It is alive and kicking, and due for a big upgrade,
Re:I'll believe it... (Score:3, Informative)
Re:I'll believe it... (Score:4, Informative)
Yes thats correct. Fe represents the balance point in the order of things.
As a star dies (runs out of H) It begings fusing the He and then Lithium... and will as it gets older, fuse heavier and heavier elements. this is responsible for the swelling of the stars size. Its a 2 stage effect. The difference between the required energy for H fusion and that required for He fusion. Once the H is used up the star begins to colapse, upon reaching the required temp/pressure for He fusion it suddenlt expands out as a new supply of energy is found to counteract gravity. Its outer layers get less dense and expand. While the inner core contracts getting denser as it fuses heavier nuclei. A "middle-sized" star will stop this reaction at Carbon. as there isnt enough energy ftom gravity to compress past this from the stars mass. But with large stars whis continues right up to Fe (Iron-56) and this reaction absorbs energy. And the inside of the star suddenly stops working and the whole star, no longer supported by the output of energy from its core collapses in on itself and goes Supernova.
Ahh Nuclear physics... such fun
Re:I'll believe it... (Score:2)
Did anyone else read that as "son of Fusion" instead of "sono-fusion"?
Re:I'll believe it... (Score:2)
" The current cold fusion apparatus still takes much more energy to start up than you get back out, and it may never end up breaking even. In the mean time, the crystal-fusion device might be used as a compact source of neutrons and X-rays, something that could turn out to be useful making small scanning machines."
:( and here I was all ready to make my own cold fusion car...
Re:I'll believe it... (Score:5, Informative)
Re:I'll believe it... (Score:3, Insightful)
This experiment has been repeated successfully and other scientists have reviewed the results: it looks like the real thing this time.
Note that this is not the same as OTHER groups reproducting a result. But as others have said here, the physics certainly fits such that even if this were flawed, it's certainly believable that non-breakeven fusion could be done in a similar fashion.
With that said, the setup is a clever arrangement.
Re:I'll believe it... (Score:5, Insightful)
*ahem*
From the comment:
In other words, an article in the Christian Science Monitor -- a fine newspaper, but not a scientific journal by any stretch -- in which the reporter casually asserts without citation that "other scientists" have "reviewed" the results, does not an independent confirmation make.
You can't just wave your hands and say "oh yeah, others have repeated it, others have reviewed it, we're done here." Who are these others? What exactly did they find, and how closely did everything match the original inputs & outputs? What kind of "review" did they do? We're still just dealing with anecdotes and hearsay, not scientific analysis.
What the grandparent poster implicitly asked for, reasonably, was [presumably refereed] articles in [presumably credible] scientific journals documented that other [presumably non-pseudo-science] researchers had taken the procedure described here, replicated the experimental apparatus, conducted their own trial of the experiment, and then verified that the results they obtained were in agreement with the ones predicted by the original researchers. If all that happens, then, and only then, are we getting somewhere.
Until then, this doesn't sound like much more than yet another cold fusion pipe dream.
Re:I'll believe it... (Score:3, Informative)
Re:I'll believe it... (Score:2)
Re:I'll believe it... (Score:2)
Wow... (Score:2)
Re:Wow... (Score:2)
The 2nd To Last Paragraph Is The Most Important: (Score:2, Interesting)
While it m
Re:The 2nd To Last Paragraph Is The Most Important (Score:2)
It's when and how you get that reaction started and how you get the energy back out that makes the difference.
Re:The 2nd To Last Paragraph Is The Most Important (Score:2)
And if you like putting more into things than you get back out, I'll happily give you this $5 bill for one of your $10 bills. We'll repeat the process a few times, too, for good measure, just to make sure that you're completely satisfied.
Re:The 2nd To Last Paragraph Is The Most Important (Score:2)
Re:The 2nd To Last Paragraph Is The Most Important (Score:2)
A rechargable battery takes more energy to make and charge than you get back out of it, but that hasn't stopped battery powered devices from being in common use.
A battery is an energy storage device, while fusion is supposed to be an energy source.
Re:The 2nd To Last Paragraph Is The Most Important (Score:2)
Could be said of just all matter... Gasoline is a form of energy storage, as is wood, trans uranic fissile elements, di-hydrogen oxide, etc. All store energy, and release (or absorb) it in certain ways.
Re:The 2nd To Last Paragraph Is The Most Important (Score:4, Insightful)
The summary of that is, "readily available fusion could happen soon, but don't count on it."
Re:The 2nd To Last Paragraph Is The Most Important (Score:4, Insightful)
Re:The 2nd To Last Paragraph Is The Most Important (Score:2)
This is
Re:The 2nd To Last Paragraph Is The Most Important (Score:2)
Cheers.
Re:The 2nd To Last Paragraph Is The Most Important (Score:2)
The size of the apparatus matters insofar as this isn't a warehouse-sized gizmo, such as a Tokamak reactor. Even if the
This is Old News (Score:5, Informative)
It was reported on in the press (MSNBC [msn.com]) and Slashdot had a lively discussion here [slashdot.org] and slashdotted a UCLA server. There is more at a (hopefully non-slashdotted) UCLA website [ucla.edu].
Re:This is Old News (Score:3, Interesting)
Re:This is Old News (Score:3, Interesting)
Warming the crystal by about 100 degrees (from -30 F to 45F) produced a huge electrical field of about 100,000 volts across the small crystal.
They are using a pyroelectric crystal to generate a strong electrical field to accelerate protons sufficiently to get fusion. Dumping a lot of energy into individual protons to get them to fuse is hot fusion.
This article has to be one of the worst examples of science reporting I've ever see
Re:This is Old News (Score:3, Interesting)
Re:This is Old News (Score:2)
Better link (Score:2, Informative)
Cautious but optimistic (Score:5, Interesting)
I am optimistic. We have a slightly-puritanical mindset that we have to work for everything. Well...we are coming upon an easy and elegant solution to our energy problems. Even fission needs to be explored more as we find newer ways to contain the radiation (nuclear batteries lasting years could come soon if we get over our hangups).
Re:Cautious but optimistic (Score:2)
Re:Cautious but optimistic (Score:3)
It's not a potential power source, and it's not a cold fusion device. It's based on the same principle as every other fusion-based neutron source, like the fusor, or pulse neutron tube - you use an electric field to accelerate nuclei to a very high energy and slam them into a target. The only difference about this device is that it uses this tiny pyroelectric crys
University of Los Angeles? (Score:2, Interesting)
google doesn't seem to think there is a "University of Los Angeles"
Re:University of Los Angeles? (Score:2, Informative)
macromedia (Score:2, Funny)
Heady group (Score:5, Informative)
Putterman [ucla.edu] is particularly famous for his work on sonoluminescence.
Funnily enough, this is not really the core research of Putterman, his earlier work has largely been in the area of blackbody radiation, sonoluminescence and certain related quantum phenomena.
More technical details would be nice.
Re:Heady group (Score:3, Informative)
But it is grammatically [reference.com] valid [m-w.com].
Christian Science Monitor to the rescue (Score:5, Funny)
Re:Christian Science Monitor to the rescue (Score:2)
Your post is really on point, a hydrogen bomb is a tool, just like journalism.
What next? (Score:5, Funny)
Apple -> Intel
Transmeta go out of business
Cold fusion
What the hell can happen next? My money's on Bill Gates being found dead with a grapefruit up his arse up a crack whore alley...
Re:What next? (Score:5, Funny)
Re:What next? (Score:2)
Re:What next? (Score:2)
personally that sounds more like Ballmer's thing. Haven't you read his book "Grapefruit Sodomy and Crack Whores, That Sort of Thing Is My Bag, Baby"?
Re:What next? (Score:2)
IBM buys AMD (Score:2)
Yeah, the worlds changing fast lately.
Duke? (Score:3, Funny)
Alert to Naysayers (Score:3, Interesting)
I expect an even greater number of such clowns hitting the news any time now. It's only a shame that each will get far more than the 15 minutes they've already used up.
nice (Score:2)
now i have an x86 powermac run on my coldfusion generator.
nice
Cold fusion works (Score:2, Troll)
Let me just note that cold fusion works and always has. This has been known since the 1920's; it is called quantum tunneling. This isn't even a matter of debate. The only "small" issue is the many orders of magnitude difference between the yield obtainable in practice and what is needed for breakeven.
So just saying that cold fusion was achieved is no data at all. The question of whether the technique scales to the breakeven point is absolutely criti
Re:Cold fusion works (Score:2)
For "cold" atoms, the tunnel barrier is way to high and broad... thats not a few orders of magnitutes too low, its hundreds...
The only way ever to get fusion (and not even in the break even way of things, just like 1 reaction per mol per century) is the very far end of the bolzmann tail, which isnt cool anymore.
Just think about it: There are detectors for neutrino experiments using thousands of tons of water or other stuff (like that in japan, nakasomthing), under EXTREME survilan
Re:Cold fusion works (Score:2)
IIRC, Steve Koonin at Caltech did the work, and the result was a tunneling fusion rate per DD molecule at room temperature of something like 10E-40
Old news...? (Score:2)
---
So how come we haven't heard more about this? Does it not produce a lot of energy?
OMG (Score:5, Funny)
Re:OMG (Score:5, Funny)
Cold Fusion does work (Score:2)
Old news (Score:5, Funny)
Re:Old news (Score:2)
Dammit Scotty! (Score:5, Funny)
Instead of using high temperatures and incredible densities to ram protons together, the scientists at UCLA cleverly used the structure of an unusual crystal.
That crystal wouldn't happen to be Dilithium [wikipedia.org] would it?
Re:Dammit Scotty! (Score:2)
1) Everyone knows dilithium moderates mater anti-matter reactions, not fusion
2) The actual crystal was lithium tantalate
Oddly enough... (Score:2, Redundant)
Re:Dammit Scotty! (Score:2)
Was it just me ... (Score:2)
yawn (Score:2)
it was even done by a college freshman [deseretnews.com] a few years ago
this isn't news!
the REAL news is when we have a fusion device that releases more energy than it consumes
so until the slashdot editors catch the clueboat
"For the last few years, mentioning cold fusion around scientists has been a little like mentioning Bigfoot or UFO sightings."
should read
"For the last few story dupes, mentioning old news about cold fusion around slashdot
Re:yawn (Score:2)
That figures. Someone invents cold fusion and the tv, and which one does humanity cling to dearly?
The need for superconductors (Score:2)
Pyrofusion CPU (Score:2, Funny)
Wow, we can do this at home!! (Score:2)
Sincerely, Rob N3FT
it HAS to be said.... (Score:2)
Brian Josephson's Gonna Laugh his Ass Off... (Score:2)
I still think he's nuts, but it looks like he may have called this one correctly after all.
Oh well (Score:2)
Have you considered what would happen... (Score:2, Interesting)
The socio-economic earthquake would be 11.0 on the Richter scale. The oil companies would go bankrupt. 99 out of 100 'service stations' would be abandoned, dilapidated blights on the landscape. The Middle East would be all of a sudden much less important to the western world, and Israel would all of a sudden have no big body guard named Uncle Sam. All cars would be electric
Why science writers suck (Score:2)
Rather, I call "[-1, Off-Topic]" on the article's author and the entire Christian Science Monitor editorial staff.
We are officially in the Negaverse (Score:2)
Cold Fusion.
OMG?
mesoatoms (Score:2, Informative)
Real cold fusion is about meso-atoms that are much smaller because muons are heavier than electrons. And so they could be moved closer to each other while being still neutral. Use Google - http://www.google.com/search?&q=mesoatom+fusion [google.com]
Well, what about these ideas .... (Score:4, Informative)
Can we make a better fusion device using precise fabrication tools? -- produce exactly the right materials and spacing to create tiny little accelerators, artificial crystals, to optimize this procedure?
If so, can we make a "sea urchin" with a few thousand such little accelerators, all pointed precisely at a tiny pellet -- a miniature version of the giant laser devices currently being built?
Build the capacitor, the accelerators and the fusion core all on a little chip, wind it up
If so there'd be a nice pellet for for a fusion pellet gun to use to drive an Orion-type spacecraft. Even if it DID take more energy to manufacture than it'd produce, it'd be one heck of a good way to store energy for, um, rapid decomposition devices (things that go boom).
Or, a wholly different approach --
I've always wondered what would happen if someone manages to cause fusion to occur between a couple of Bose-Einstein Condensates.
Make them out of, on the one hand, tritium atoms, and on the other hand, deuterium atoms. Result, one large 'atom' of each element. Very large. Then clap your hands. Fusion?
Or better yet, use condensates of boron and hydrogen, of course.
The boron-hydrogen method is described as currently being worked on (not using Bose-Einstein condensates -- using something like the Philo Farnsworth accelerator), if I read it correctly, here:
http://www.focusfusion.org/energy2.html [focusfusion.org]
Re:Interesting, but strangely familiar (Score:2)
Ummm.... I'm afraid you'll have to more specific...
That's funny - it reminded me a really bad Val Kilmer movie [imdb.com].
I know, I know... I'll have to be more specific...
=tkk
Re:Interesting, but strangely familiar (Score:2)
I know, I know.. I'll have to be more specific...
Re:University of Los Angeles? (Score:2)
http://en.wikipedia.org/wiki/Sonoluminescence [wikipedia.org]
Doesn't seem to be just reflections to me. You'd think btw, that if it was just reflections it'd occur to someone to turn off the lights.
Re:CSM? (Score:5, Informative)
I know that I would give more weight to the CSM's coverage of this story than I would, say, Fox News, The Washington Post or Slashdot.org.
Who's the idiot moderating this as... (Score:2)
Because without us posters and viewers, this site would be fucking worthless to whomever owns this fucking site. And buy posting Dupes, they (the owners) lose eyeballs.
Thank you,
MisanthropicProgram, MBA.
Re:Who's the idiot moderating this as... (Score:5, Insightful)
Seriously. If you see a dupe, don't read it. I didn't see this the first and second times, so this is cool for me
Cool. (Score:2)
I stand corrected - I think ;-)
Re:Cool. (Score:2)
Re:Cool. (Score:3, Funny)
I'll go back to not posting for a couple months again...
Re:Not sure if I trust the source... (Score:2)
Yeah, I could tell... Right about when the author gets to "Do you remember learning about electricity in high school? I sure do - I dreaded it whenever that topic came around", I felt overwhelmed with confidence in her ability to comment on such a friendly, fluffy topic as cold fusion.
Or perhaps "Here's where an amazing and mysterious force comes in" (mysterious... Like the author's credibility?) is what you meant to refer to?
Nonono, don't tell me, "Is
Re:Yawn? (Score:2)
Re:Query (Score:3, Informative)
Other scientific disciplines have numerous amatures involved, notably astronomy, and to a lesser extent biology, and even computer science.