A dozen cajun wings and baked beans...I will show you some real nuclear fusion!
Understand where you're coming from but, without any scientific facts to back it up, I believe the human race will ultimately be able to harness nuclear fusion for its own benefit.As a sustainable energy source? No I don't see it.
This is the way I view it: for nuclear fission radioactive materials are readily available in nature. All man has done is collect and purify them. Want to create a new material like plutonium? Slowly collect the emissions and bombard uranium. Nothing fancy, can be done relatively easily.
Fusion on the other hand is found nowhere in nature except in a star. Not on this planet, any other planet, asteroids, comets, etc. The amount of sustained pressure and temperature is phenomenal - a massive gas giant like Jupiter or even larger doesn't create it. Then you have the problem of materials of construction. Every material is created in the fusion reactor of a star. What materials hold up against a star? Nothing does, massive gravity holds that star together. How are you going to create that on earth? While it's nice to ponder, containing sustained fusion nuclear explosions is a pipe dream.
It's a massive waste of money. These articles use descriptive terms to describe progress. If you have to walk to the moon, and you climb the empire state building, sure, technically you've achieved orders of magnitude of improvement, but it's still meaningless.
Then, after another 55 years, well be flying to ... the moon.Or, put another way, the modern human race required nearly 200,000 years of existence to figure out how to fly in Earth's atmosphere at all. Then, in 66 years, a little less than the average length of a single human lifetime, it went from not being able fly at all --- to the Moon.
Excellent post.Understand where you're coming from but, without any scientific facts to back it up, I believe the human race will ultimately be able to harness nuclear fusion for its own benefit.
Modern humans supposedly have existed for about 200,000 years. For all but the most recent 119 or so of those years, the prevailing wisdom among many intelligent people regarding controlled, powered flight in the Earth's atmosphere held that if God wanted mankind to fly He would've given him wings, and I suppose those wings would've been on his back and would've flapped like a bird's -- or an angel's. But obviously they weren't there. So, what was the natural conclusion?
Then, in December, 1903 a couple of obscure bicycle mechanics from Dayton, Ohio turned conventional wisdom on its head and proved that, in fact, God had given Man wings. They were there all the time. It's just that they were in his mind, not on his back where conventional wisdom would've had them. The Wrights' first flight wasn't much, but it turned out to be enough of a start to allow astronauts to land on the Moon 66 years later. Or, put another way, the modern human race required nearly 200,000 years of existence to figure out how to fly in Earth's atmosphere at all. Then, in 66 years, a little less than the average length of a single human lifetime, it went from not being able fly at all --- to the Moon.
Am guessing that, in 2022, controlling the fusion reaction may appear to some like the mastering of controlled, powered atmospheric flight looked to their 19th- or early 20th century grandfathers, i.e. nearly, probably totally-, impossible. But if past is prologue, at some point science will produce the necessary breakthrough(s) and, assuming humanity can also find a way to avoid using its existing, scientifically-developed nuclear-fusion weapons to blow itself to bits in the meantime, will then move on to the next "impossibility" like, say time travel, or wormholes or ...???
Has anything happened to Ranga Dias ?University of Rochester selected to receive a 10 Mil (out of 42 mil total) grant on fusion energy along with Lawrence Livermore and Colorado State.
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Rochester’s Laser Lab heads new national inertial fusion energy hub
Federal funding brings together inertial fusion energy experts to chart a viable path to realizing fusion energy as a clean power source.www.rochester.edu
Has anything happened to Ranga Dias ?
I'd say this particular merger is another attempt to commit legal theft.I remember reading this thread and it seeming a near impossibility to make fusion energy a reality. Yesterday I heard that Trump's media company is merging with TAE Technologies and bring a first fusion plant to the US by 2031. Color me skeptical.
100% safe betI'd say this particular merger is another attempt to commit legal theft.
The answer is I’m not tellingI'm sure there are a few posters here who know more about this than me.
No, no, not yet.I thought we already had that.
Plutonium is old news. The hot thing is cobalt-thorium GI heard CEO of OKLO on CNBC the other day that they can use plutonium as a bridge for boosting data center energy requirements until more options are available. There is plenty of plutonium available from previous wars that is only set to be destroyed and can be used for this. Just passing on, don’t shoot the messenger.
I was lead sales executive selling 3D solid modeling solution called Pro/Engineer to LLNL national ignition facility (NIF) mid 90s. That's the fusion project that supposedly reached breakthrough in 2022. The scientists told me that by 2050 they will have fusion mainstreamed.My daughter with her doctorate in Nuclear Engineering works at the one place that had success with fusion ignition, Lawrence Livermore. She does not think this is going to be something that will be a useful technology anywhere in the near term future (10-20 years). I will add that she doesn’t work in the nuclear power field at LL NL, although she does know some who do.
Was just gonna mention Commonwealth Fusion Systems. I'm hearing they are getting very close.I think the MIT prof who was murdered was working on fusion.
I have read fusion is getting real close. Bill gates and some of the large tech companies have invested billions since they need the power. They think it is coming.
MIT grads have a private company working in it. Commonwealth fusion.
The sun does.I thought we already had that.
My daughter with her doctorate in Nuclear Engineering works at the one place that had success with fusion ignition, Lawrence Livermore. She does not think this is going to be something that will be a useful technology anywhere in the near term future (10-20 years). I will add that she doesn’t work in the nuclear power field at LL NL, although she does know some who do.
A lot of smart kids out there . The board’s wives must be brainiacs. Congrats doc.My daughter with her doctorate in Nuclear Engineering works at the one place that had success with fusion ignition, Lawrence Livermore. She does not think this is going to be something that will be a useful technology anywhere in the near term future (10-20 years). I will add that she doesn’t work in the nuclear power field at LL NL, although she does know some who do.
True here in downtown delaware lmaoA lot of smart kids out there . The board’s wives must be brainiacs. Congrats doc.
The Sun has been doing it constantly for a few billion years now.If it hasn't been done, how do they know it will even work?
What stock will make money off of this?
So in other words, the media was spouting nonsense 50 years ago just like they do now.Nuclear fusion is not my research specialty as a physicist but I took some particle physics and astrophysics courses in grad school so I can opine. When i was a young lad I toured the Princeton Plasma Physics Fusion Lab 50 years ago and they confidently announced then that commercial fusion reactors were about 50 years away. Today's prediction is, guess what, still about 50 years away. Nevertheless, I think that it will eventually happen. The technological challenges are severe but not insurmountable. For those who fear a catastrophic runaway fusion reaction, keep in mind that a fusion reaction is so difficult to ignite, let alone sustain, that unlike a fission rector, a fusion reactor could be shut down within microseconds.
As for cold fusion, I saw it first announced by Dan Rather on network news while I was sitting in a bar with some colleagues after a long day at a physics conference. We immediately did a calculation (yes, on a bar napkin) using a quantum mechanical techniaqe called the WKB approximation and some physics constants from memory (perhaps clouded by beer consumption) and got a probability of such a reaction about 80 orders of magnitude smaller than what they were announcing. Nevertheless, when we got back at the end of the week we quickly scrounged some heavy water, some palladium electrodes, and some neutron counters and built electrochemical cells out of soda cans and styrofoam cups immersed in a fish tank (the small plastic diver emitting bubbles added a bit of artistic whimsy) to duplicate the Pons and Fleischmann results. Because they claimed that their reactor had set fire to and melted a chemical fume hood containing the experiment, we set it up to run by computer over a weekend. We came in Monday morning and saw that the temperature of the cells had risen along with the neutron counts. Success!!!??? The first thing a physicist should ask is, "How could we be fooling ourselves?" A quick call to Lab Facilities asked if they turn off the air conditioning over the weekend. Yes, they do. A call to the owners of the neutron counters asked if the dark (i.e., false) neutron counts depended on temperature. Yes, as T rises, so do dark counts. Oops, results were coincidental, not confirmational. That same day, a group from Texas A&M announced "positive" results like ours that they later had to retract. A few weeks later we attended a special session on cold fusion at another physics conference where group after group announced negative results. A famous chemistry professor from CalTech (NathanLewis) gave a devastating rebuttal to cold fusion and summed up with the statement, "No reputable university without a good football team has shown positive cold fusion results". Ouch, but not entirely accurate. Texas A&M sucked at football back then (and still vastly underperforms). Cold fusion research sputtered along for a bit with its true believers, and then died. Nevertheless, those were among the most exciting six weeks of my scientific career.
PS For the poster who said particle accelerators (and by the way, they are not directly related to fusion research) are a wasteful boondoggle, I respond that, like the James Webb telescope,they do not lead to commercial products or new military systems but to fundamental knowkledge. As such, they do not contribute to national strength or defense, but to what makes the country worth defending and the human race worth preserving.
It is not often that I get to respond to a question about a post I made almost four years ago (2/12/2022 on page 1 of this thread).So in other words, the media was spouting nonsense 50 years ago just like they do now.
Seriously, the media, and Fleischman and Pons, should have been more responsible. I don't recall. Were Fleischman and Pons purposely trying to pull a fast one or were they just delusional? Not good either way.
Thanks for the insight @Leo Ridens. Always a treat to read your technical posts. Hope this finds you well.It is not often that I get to respond to a question about a post I made almost four years ago (2/12/2022 on page 1 of this thread).
Pons and Fleischmann fell prey to the lure of believing their incomplete and misleading data set. See:
Pathological science - Wikipedia
en.wikipedia.org
FYI A small effort in cold fusion is still going on where I work. I think it those doing it are falling prey to the psychological trap described in the above article.
Now on to real fusion. A friend from grad school has worked in hot fusion for decades and says commercialization has serious problems. See:
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Fusion reactors: Not what they’re cracked up to be
Long touted as the “perfect” energy source, fusion reactors share many drawbacks with fission—and even add a few new ones of their own.thebulletin.org
Short summary: Large scale commercialization is still decdes away, if then.