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Submission + - With explosive new result, laser-powered fusion effort nears 'ignition' (sciencemag.org)

sciencehabit writes: More than a decade ago, the world’s most energetic laser started to unleash its blasts on tiny capsules of hydrogen isotopes, with managers promising it would soon demonstrate a route to limitless fusion energy. Now, the National Ignition Facility (NIF) has taken a major leap toward that goal. Last week, a single laser shot sparked a fusion explosion from a peppercorn-size fuel capsule that produced eight times more energy than the facility had ever achieved: 1.35 megajoules (MJ)—roughly the kinetic energy of a car traveling at 160 kilometers per hour. That was also 70% of the energy of the laser pulse that triggered it, making it tantalizingly close to “ignition”: a fusion shot producing an excess of energy.

Submission + - LLNL's NIF laser fusion lab is on the verge of achieving thermonuclear ignition. (pastebin.com) 2

deglr6328 writes: Switched on over a decade ago, the National Ignition Facility at Lawrence Livermore National Lab is a 2 megajoule, 500 terawatt ultraviolet laser designed to ignite a thermonuclear burn wave in compressed pellets of deuterium-tritium fuel which should produce more energy than was delivered to them by the laser itself. For years after beginning experiments, fusion yields languished at more than an order of magnitude lower than necessary to achieve ignition and far less than predicted to occur in supercomputer simulations; beleaguered by the same energy sapping hydrodynamic and laser-plasma instabilities that plagued smaller predecessor laser fusion machines from the 70s through 2000s.

In an email to lab employees and to several other ancillary external labs that work with LNNL in guiding its experiments, a true breakthrough has been announced. Last weekend, after a series of recent advancements in shot neutron yields resulting from new hohlraum and target designs, and new pulse shape and target layering alterations, NIF shot a target that produced a greater than 1 megajoule yield, a six-fold improvement over the previous highest yield shot and a four-fold greater energy release than the capsule itself absorbed. This achievement puts the device within immediate striking distance of its namesake — the first fusion ignition and burn experiment in a laboratory setting. Experiments scheduled for October are expected to cross that threshold proper for the first time in history.

Comment Re:Example of a publicly developed vaccine (Score 4, Informative) 491

I don't have the slightest clue as to why you're modded at +5, but I do know that you have literally no clue as to what in the hell you're talking about. I assume you're referring to the anti HPV vaccine Cevarix rather than Gardasil because you mention "the Australian taxpayer" and some of the technology used in Cevarix was discovered at Uni. Queensland. You conveniently neglect to mention that the Queensland researchers were collaborating with others at Georgetown, the Uni. of Rochester and the US National Cancer Institute, among others. The technology behind the discoveries made at these places was licensed to GlaxoSmithKline, a British company. The idea that the Australian taxpayer footed the bill for the FDA trials in the US is, frankly, idiotic. The trials were conducted by Glaxo, obviously. Additionally, there is no "US drug company that licenced [sic] it", it's being sold by Glaxo here just as it is everywhere else.

I know it's a crying shame that none of this fits into your wacky worldview where all corporations represent the nexus of evil and steal all their product ideas from "the people", but I guess you'll just have to find some way to get over it. I suggest you take some of your own advice about "paying more attention before writing" before your next post.

Comment Re:Annoying at night... (Score 1) 107

Mmmmmno, they don't. The fish are FLUORescent, not PHOSPHORescent. They're transfected with GFP like these cats. Hence the name GFP: green fluorescent protein.

FLUORESCENCE PHOSPHORescence ELECTROluminescence GALVANOluminescence BIOLUMinescence

All these phenomena are distinct. I'm wondering if anyone has ever heard of any naturally occurring PHOSphorescent molecules.

Comment Re:Sending astronauts? (Score 1) 132

Nope, not saying any of that hilariously absurd, contrived, strawman bullshit at all. But I genuinely appreciate that you saw my totally unrelated point sufficient reason to fire up your obviously well oiled Chomskybot, such that you could spout your long, soporific list of dimestore, cryptofascist mewlings. Better luck next time in arguing against a transparently ridiculous point opposite to the one I was obviously making, though. Have a nice day :)

Comment Re:Sending astronauts? (Score 3, Interesting) 132

"....Patriotism has no place in science."

Patriotism may have no place in science, but science unquestionably has a place in patriotism.
I'm proud that my country built and operates the Tevatron which discovered the top quark, I'm proud we built the world's most powerful laser, the National Ignition Facility which is on the verge of demonstrating controlled thermonuclear fusion in a laboratory, I'm proud we were the first to decipher the 3 billion letter sequence of the human genome, I'm proud we invented the transistor, the laser, the nuclear reactor and the Polio vaccine that is on the verge of wiping that disease from the face of the Earth forever, I'm proud we engineered the microcomputer revolution and invented the internet those machines operate on, I'm proud we were the first to robotically explore every planet in the solar system with the exception of Venus and sent probes into interstellar space, and I'm proud of a thousand other things my country did to push back the darkness of ignorance about the physical world, thereby elevating the human condition to previously unimagined heights. And I hope that someday, instead of being proud of something as stupid as military might, or the number of gold medals we win in the Olympics, that my countrymen can join me in the more nuanced and altruistic flavor of patriotism that I am proudly guilty of indulging in. My style of patriotism is anything but the last refuge of scoundrels, and scientific achievement plays a central role in its maintenance.

Comment Re:Who let the cat out of the bag? (Score 1) 219

Well, I'm from liberal about-to-legalize-gay-marriage (wo0t!) New York and I think it's a ridiculous waste of money too. 2 Billion dollars for a 500 megawatt generating plant? Please. This is some kind of sick joke.

The 500 MW is obviously peak power output, meaning that average power is going to be 200 MW, TOPS. 2 BILLION dollars for a 150 MW generating station. That's beyond pathetic. A natural gas fired station that provided that kind of power output could be built for 5% of that kind of money. The argument for this being a good investment into the technology is even more absurd. It's just a solar thermal plant using hot oil /molten salt. We've been doing this stone-age level crap since the early 70's.

Do I really need to explain what kind of advancements the nuclear fusion community could do with 2 billion dollars? We're right on the edge (like, this year) of demonstrating fusion ignition in the laboratory at the National Ignition Facility, a lab that houses the most powerful laser in the world and the largest, most complicated optical system ever constructed, at a cost barely more than 50% of this useless, make-work, feelgood project. $2 billion could go a long way toward building a gigawatt level power plant demonstration reactor after NIF achieves ignition, instead of wasting it on this nonsense that produces laughably insignificant amounts of energy.

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