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Viewing 15 posts - 46 through 60 (of 234 total)
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  • in reply to: Fusion Books for General Readers #12787
    Ivy Matt
    Participant

    Here’s a fairly new one for a general audience:

    A Piece of the Sun: The Quest for Fusion Energy by Daniel Clery

    Published June 27, 2013. Clery was a news editor for [em]Science[/em] magazine who decided to write a book on the history of fusion. He shelved the idea when he heard his former colleague, Charles Seife, was working on a similar project. When he read Seife’s book, however, he decided to go ahead with his project, presumably partly as a response to Seife. I haven’t read Clery’s book yet, but I am interested, although I don’t know to what extent he covers alternative confinement concepts and aneutronic fusion. Unfortunately I haven’t been able to find a table of contents or index online.

    From Clery’s blog I found a reference to another recent book:

    Star Chambers – The Race For Fusion Power by Melanie Windridge

    Published September 21, 2012. It’s a very basic introduction to fusion, based on a series of blog posts Windridge wrote as the Institute of Physics lecturer in 2012. It focuses on tokamaks, which is not surprising, considering Windridge did her PhD research at JET.

    EDIT:

    [em]A Piece of the Sun[/em] table of contents courtesy of WorldCat:

    Why Fusion? —
    Britain : Thonemann and the Pinch —
    United States : Spitzer and the Stellarator —
    Russia : Artsimovich and the Tokamak —
    Tokamaks Take Over —
    Fusion by Laser —
    One Big Machine —
    If Not Now, When?

    Ivy Matt
    Participant

    Does it usually take Google three weeks or more to post their Solve for X videos?

    in reply to: Fusion Propulsion and energy #12609
    Ivy Matt
    Participant

    And some publicity here:

    http://www.washington.edu/news/2013/04/04/rocket-powered-by-nuclear-fusion-could-send-humans-to-mars/

    http://cosmiclog.nbcnews.com/_news/2013/04/05/17606782-scientists-develop-fusion-rocket-technology-in-lab-and-aim-for-mars

    From the Cosmic Log article:

    “The only answer to the ‘always 30 years in the future’ argument is that we simply demonstrate it,” Slough said. And that’s what he and his colleagues intend to do this summer, at their lab inside a converted warehouse in Redmond, Wash.

    The key experiments are due to take place starting in late summer, at the UW’s Plasma Dynamics Lab in Redmond. If everything works, that would give the researchers the confidence to scale up the laboratory apparatus. For example, they’d use lithium rings instead of aluminum rings to increase the efficiency of the reaction.

    in reply to: Iran working on IEC #12383
    Ivy Matt
    Participant

    Japan (Kyoto University, Kansai University, and Tokyo Tech) and Australia (University of Sydney) would be two. Not sure who the other two would be, but there’s a list of countries that have pursued IEC technology at some point in the past on page 5 of this presentation.

    in reply to: Keshe Foundation reactor #12368
    Ivy Matt
    Participant

    I haven’t really commented yet on my opinion of Keshe’s overall credibility, but there’s a reason I placed the topic in this forum. After looking through his patent applications, I’m still not clear on how a physical embodiment of his invention, assuming one were to exist, would perform useful work. On his website Keshe touts an evaluation of his concept by a professor of mechanical engineering, who gives a rather confusing opinion. He says that the concepts behind energy production are feasible, but at the same time he strongly recommends that an expert in the field of nuclear energy production give a second opinion on the practical feasibility of the project, as his research does not concern nuclear energy production. That recommendation was made in 2005. I see no such second opinion on Keshe’s website, suggesting he either never sought it, or received it, but didn’t like the answer.

    in reply to: Keshe Foundation reactor #12366
    Ivy Matt
    Participant

    Breakable wrote: It seems they are exploiting some sort of URL redirection in expression engine just to pretend it is part of focus fusion website

    I’m not sure I understand. To give a little more context, most of my post (i.e. the long quote) was a verbatim quote of a comment M.T. Keshe posted in his own forum. In turn, the subject of Keshe’s post was the video of LPP’s presentation at Ernst & Young in New York on October 12th. Anyway, I was quite amused (though indignant at times on Dr. Lerner’s behalf) by Keshe’s strange interpretation of the significance of the video. But what really bowled me over was Keshe’s claim that the DPF fusion reactor (as conceived by Torulf Greek) was his own concept.

    However, I have since taken a look at Keshe’s patent applications, and I can see how his claim might be an innocent (if not terribly bright) mistake: after all, Keshe’s concept consists of two concentric spherical chambers, and Torulf’s conception of the DPF fusion reactor has the spherical “onion” X-ray collector, surrounded by a spherical water jacket.

    in reply to: Fusion policy in the New York Times #12336
    Ivy Matt
    Participant

    I am somewhat skeptical of Hirsch’s recommendation. After all, it was a similar push by him to narrow the field back in the ’70s (plus unforeseen, if not unforeseeable, budget cuts) that got us the tokamak monopoly. On the other hand, I’m not sure how much good is being done by the DOE’s present overwhelming focus on tokamaks. At any rate, I think it’s a good thing the New York Times is hosting this argument, rather than only covering the latest developments related to ITER and/or NIF. Even if the DOE is unwilling or unable to expand its focus much, a wider audience is thereby made aware of other options.

    The full EPRI paper mentioned by Hirsch (and of which he was a co-author), “Criteria for Practical Fusion Power Systems”, can be found here, along with other papers related to the economics of fusion reactors (mainly tokamaks and IEC).

    in reply to: NIF upgraded for summer campaign #12190
    Ivy Matt
    Participant
    in reply to: MSNW ready for breakeven experiment #12169
    Ivy Matt
    Participant

    NASA has announced its 2012 NIAC Phase I and Phase II selections. John Slough’s team at MSNW LLC was selected for a NIAC Phase II award of up to $500,000 over the next two years.

    in reply to: p-11B: is it Fusion or Fission? #12144
    Ivy Matt
    Participant

    On a historical note, the term “splitting the atom” originally referred to some of the better-known aneutronic nuclear reactions. “Fusion” originally referred to the D+D nuclear reaction.

    in reply to: p-11B: is it Fusion or Fission? #12133
    Ivy Matt
    Participant

    It’s a nuclear reaction. 😛

    in reply to: NIF upgraded for summer campaign #12124
    Ivy Matt
    Participant

    Here’s another article, from optics.org:

    NIF ‘tantalizingly close’ to ignition breakthrough

    No new estimates of when ignition will be achieved, only a repetition of what Mike Dunne said back in January. However, unnamed NIF officials say the project is “75% of the way” towards achieving ignition, whatever that means. I would guess they’re using number of shots as the metric, but who knows?

    in reply to: NIF upgraded for summer campaign #12052
    Ivy Matt
    Participant

    June update.

    Might as well add this article too.

    in reply to: Fusion Wins Big in House Spending Bill #12011
    Ivy Matt
    Participant

    The House passed the FY 2013 Energy & Water appropriations bill. New Jersey representatives Holt (D) and Frelinghuysen (R) made an appearance at PPPL to announce the bill’s passage. Frelinghuysen is the current chairman of the House Subcommittee on Energy and Water Development, and Related Agencies, which was responsible for drafting the bill. The Senate, which has yet to pass an energy appropriations bill for FY 2013, will review the legislation.

    in reply to: NIF upgraded for summer campaign #12010
    Ivy Matt
    Participant

    The May update is now online. Not a whole lot of news, except that the maintenance and configuration was completed on May 18. Presumably NIF is able to operate at 500 trillion watts now, and the summer campaign has begun.

Viewing 15 posts - 46 through 60 (of 234 total)