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0xdeadbeef writes "Two weeks ago, MIT artist-in-residence Joe Davis used the Arecibo radio telescope to send a message to three stars in honor of the 35th anniversary of the famous Drake-Sagan transmission to M13 in 1974. It was apparently allowed but not endorsed by the director of the facility, and used a jury-rigged signal source on what will now be known as the 'coolest iPhone in the world.' The message encoded a DNA sequence, but no word yet on whether it disabled any alien shields. You can get the low-down on Centauri Dreams: Part 1, Part 2."

0xdeadbeef writes "Two weeks ago, MIT artist-in-residence Joe Davis used the Arecibo radio telescope to send a message to three stars in honor of the 35th anniversary of the famous Drake-Sagan transmission to M13 in 1974. It was apparently allowed but not endorsed by the director of the facility, and used a jury-rigged signal source on what will now be known as the 'coolest iPhone in the world.' The message encoded a DNA sequence, but no word yet on whether it disabled any alien shields. You can get the low-down on Centauri Dreams: Part 1, Part 2."

After the report last week that Brazil's e-voting machines had withstood the scrutiny of a team of invited hackers, reader ateu writes with news that a hacker has shown that the Linux-based voting machines aren't perfectly safe; he was able to eavesdrop on them (translated from Portuguese) by means of Van Eck phreaking.

jenkin sear writes "Data visualization guru Edward Tufte developed Sparklines, a great way to display condensed data as an inline graphic. Excel's new version has incorporated the design element — and Microsoft has applied for a patent on them — without so much as a by-your-leave from Tufte."

aaaaaaargh! writes "I'm using a laptop with Ubuntu 8.04 for work, a netbook with Ubuntu 9.10 when I'm outside, Mac OS X 10.5 for hobby projects, and Windows XP for gaming. For backups, I'm currently using Jungle Disk and Apple's Time Machine, and I use a local svn repository for my work data. Now I need to frequently exchange and synchronize OpenOffice and Latex files and source code in various cross-platform programming languages between one machine and another. Options range from putting everything online (but Jungle Disk disks seem to be too slow for anything else than backup), storing my data on external media like USB sticks or SD cards, or working with copies by synchronizing folders over the network. I don't want to give my data away to some server outside without strong encryption (controlled by me, including the source code) and external media like USB sticks are a bit too fragile according to my taste. The solution should be reliable, relatively failsafe, as simple as possible, and allow me to continue to use Jungle Disk for backup. So what would you recommend?"

Hugh Pickens writes "The advantages of RISC are well known — simplifying the CPU core by reducing the complexity of the instruction set allows faster speeds, more registers, and pipelining to provide the appearance of single-cycle execution. Al Williams writes in Dr Dobbs about taking RISC to its logical conclusion by designing a functional computer called One-Der with only a single simple instruction — a 32-bit Transfer Triggered Architecture (TTA) CPU that operates at roughly 10 MIPS. 'When I tell this story in person, people are usually squirming with the inevitable question: What's the one instruction?' writes Williams. 'It turns out there's several ways to construct a single instruction CPU, but the method I had stumbled on does everything via a move instruction (hence the name, "Transfer Triggered Architecture").' The CPU is implemented on a Field Programmable Gate Array (FPGA) device and the prototype works on a 'Spartan 3 Starter Board' with an XS3C1000 device available from Digilent that has the equivalent of about 1,000,000 logic gates, costing between $100 and $200. 'Applications that can benefit from custom instruction in hardware — things like digital signal processing, for example — are ideal for One-Der since you can implement parts of your algorithm in hardware and then easily integrate those parts with the CPU.'"

airshowfan writes "Boeing's directed-energy weapons (a.k.a. frickin' laser beams) have been getting some attention lately. The Advanced Tactical Laser (ATL) is a C-130 that famously burned a hole through a car's hood, and the YAL-1 AirBorne Laser is a 747 that shoots a laser from its nose that is powerful enough to bring down an ICBM. But even cooler is the Mobile Active Targeting Resource for Integrated eXperiments (MATRIX), a laser that is mounted on a truck (which probably costs less than a 747, but who knows) and that can shoot down small aircraft, as shown in the picture on this article. (The Laser Avenger supposedly also has this capability). We live in the future!"

Noryungi writes "The interestingly named 'Topless Robot' has a real trip down memory lane: how the computer graphics of the original Star Wars movie were made. The article points to this YouTube video of a short documentary made by Larry Cuba, the original artist, that explains how he did it. In 1977."

eldavojohn writes "2009 has been an interesting year for NASA — from a new strategy to even closer ties with an old enemy. So it's perhaps no surprise that NASA has publicly stated that they are ready to team up with China. NASA Chief Charles Bolden said, 'I am perfectly willing, if that's the direction that comes to me, to engage the Chinese in trying to make them a partner in any space endeavor. I think they're a very capable nation. They have demonstrated their capability to do something that only two other nations that have done — that is, to put humans in space. And I think that is an achievement you cannot ignore. They are a nation that is trying to really lead. If we could cooperate we would probably be better off than if we would not.' While the budget of the China National Space Administration is a fraction of NASA's, partnering with them has been considered since 2008. In possibly related news, rumors are circulating of the Obama administration cutting NASA's budget by ten percent for fiscal year 2011 despite the success of Monday's Atlantis launch. Considering the Augustine panel's recommendations, such a cut could halt US human space flight for a decade."

IraLaefsky writes "The appropriately titled Becoming Agile: In An Imperfect World by Greg Smith and Ahmed Sidky offers a realistic path to the family of Agile practices which have become prevalent in software development in the last few years. This family of approaches to software development has been widely adopted in the past decade to replace the traditional Waterfall Model of software development, described in a 1970 article by Winston W. Royce 'Managing the Development of Large Software Systems.' The Waterfall Model stressed rigid functional and design specification of the program(s) to be constructed in advance of any code development. While the this methodology and other early formal tools for Software Engineering were infinitely preferable to the chaos and ad-hoc programming-without-design practices of early systems, these first tools ignored the fallibility of initial interviews used to construct initial design and often resulted in massive time and cost overruns." Read below for the rest of IraLaefsky's review. Becoming Agile: In An Imperfect World author Greg Smith and Ahmed Sidky pages 408 pages publisher Manning rating 9/10 reviewer IraLaefsky ISBN 1933988258 summary provides the tools to introduce and adapt agile practices in a variety of corporate cultures The Agile methodologies which are described in this text stress an iterative approach to software development, with the continuous involvement of users (or user surrogates). These iterations consist of several week periods (to at most two month intervals) where a concise partial design requirement, story, is translated to a complete executable version of the program which can be demonstrated to users, for their immediate and anticipated criticism and controlled feature addition. These practices have undergone various codifications since the Agile Manifesto of 2001. Among the more popular Agile Menthodologies are Extreme Programming (XP), Crystal Clear and Scrum.

In describing these development methodologies this practical handbook takes an approach sorely needed in descriptions of Information Technology (IT), it assumes that the purchaser is considering employing the technologies described within the context of a real corporate environment with existing strengths and limitations, an existing approach to the problems addressed, and cultural biases concerning the adoption of new technologies. This approach enables the book to be used as a virtual consultant, taking the experiences described in a case study based upon the authors' advisory experience, and the test of organizational readiness for adoption and needs for customization of the technology as true guideline for introducing these practices in culturally and technology appropriate fashion. During the mid 1980s I served as an internal consultant at a large insurance firm, at the time we were considering the introduction of Expert Systems methodologies into the IT organization. I purchased several handbooks which were intended to introduce this new from academia technology to companies in the financial industries. Most of these books did an adequate job of describing the nature and basis of this technology to IT and Business Analysts trained in existing technology. But, all of the available books failed to chart a path for an IT organization with traditional development practices to successfully migrate to the new technology and appropriately translate this technology for business management. Becoming Agile, introduces a new effective method for describing the risks, benefits and appropriate adaptation of a radically new technology to organizations with existing successful and unsuccessful software development practices and a particular business culture.

Important features of this guide include the Sidky Agile Measurement Index (SAMI) which provides guidelines in moving your particular organization to Agile practices, the non-religious presentation of multiple Agile methodologies and approaches (specifically XP and SCRUM), appendices on organizational readiness assessment, phased development within the Agile context, an overview of the Agile process (suitable for business presentation), and the author forum. The importance of recognizing that new technology methodologies such as Agile Practices must be introduced and carried out in the context of a specific organization, with its own strengths and foibles, cannot be overemphasized. Step-by-step directions and illustrations are given for choosing an appropriate target application for the initial introduction of these methodologies, and each stage of implementation and their possible stumbling blocks are carefully outlined.

That it provides the tools to introduce and adapt these practices in a variety of corporate cultures, with varying degrees of technical sophistication is an invaluable advantage over other Agile texts and will save the organization many thousands of dollars in consulting fees. My only minor nit with this exceptionally fine introduction to Agile Methodologies is that some of the illustration appear to have been formatted in PC-based tools such as VISIO and PowerPoint and require a bit of squinting to study in the smaller book format. With this trivial exception I would award this excellent guide and virtual consultant, an almost perfect nine out of ten review, and recommend it to any organization seeking to intelligently adopt Agile Practices.

The print edition is available at all retailers, while the ebook can be purchased exclusively through the Manning E-Book Storefront.

You can purchase Becoming Agile: ...in an imperfect world from amazon.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

symbolset writes "Many know the beauty and complexity of the Mandelbrot set. For some years now a few enterprising mathematicians / rendering fiends have been seeking a true 3D Mandelbrot set. A month ago a solution was found, and it is awesome to behold."

pickens writes "Denmark has unveiled official research showing that two-year-old children are at risk from a bewildering array of gender-bending chemicals in such everyday items as waterproof clothes, rubber boots, bed linen, food, sunscreen lotion, and moisturizing cream. A picture is emerging of ubiquitous chemical contamination driving down sperm counts and feminizing male children all over the developed world. Research at Rotterdam's Erasmus University found that boys whose mothers were exposed to PCBs and dioxins were more likely to play with dolls and tea sets and dress up in female clothes. 'The amounts that two-year-olds absorb from the [preservatives] parabens propylparaben and butylparaben can constitute a risk for oestrogen-like disruptions of the endocrine system,' says the report. The contamination may also offer a clue to a mysterious shift in the sex of babies. Normally 106 boys are born for every 100 girls: it is thought to be nature's way of making up for the fact that men were more likely to be killed hunting or in conflict. But the proportion of females is rising. 'Both the public and wildlife are inadequately protected from harm, as regulation is based on looking at exposure to each substance in isolation, and yet it is now proven beyond doubt that hormone disrupting chemicals can act together to cause effects even when each by itself would not,' says Gwynne Lyons, director of Chem Trust."

Ponca City, We love you writes "The NY Times reports that two World War II Japanese submarines, including one meant to carry aircraft for attacks on American cities, have been found in deep water off Hawaii where they were sunk in 1946. Specifically designed for a stealth attack on the US East Coast — perhaps targeting Washington, DC and New York City — the 'samurai subs' were fast, far-ranging, and some carried folding-wing aircraft. Five Japanese submarines were captured by American forces at the end of the war and taken to Pearl Harbor for study, then towed to sea and torpedoed, probably to avoid having to share any of their technology with the Russian military. One of the Japanese craft, the I-201, was covered with a rubberized coating on the hull, an innovation intended to make it less apparent to sonar or radar; it was capable of speeds of about 20 knots while submerged, making it among the fastest diesel submarines ever made. The other, the I-14, much larger and slower, was designed to carry two small planes, Aichi M6A Seirans that could be brought onto the deck and launched by a catapult. The submarines were meant to threaten the United States directly, but none of the attacks occurred because the subs were developed too late in the war, and American intelligence was too good. 'It's very moving to see objects like this underwater,' says Hans Van Tilburg of the National Oceanic and Atmospheric Administration, 'because it's a very peaceful environment, but these subs were designed for aggression.'"

Norsefire writes "Since releasing the 'Go' programming language on Tuesday, Google has been under fire for using the same name as another programming language that was first publicly documented in 2003. 'Go!' was created by Francis McCabe and Keith Clark. McCabe published a book about the language in 2007, and he is not happy. He told InformationWeek in an email: 'I do not have a trademark on my language. It was intended as a somewhat non-commercial language in the tradition of logic programming languages. It is in the tradition of languages like Prolog. In particular, my motivation was bringing some of the discipline of software engineering to logic programming.'"

drDugan writes "Many legitimate media providers are using Bittorrent to distribute content, but the recent Pirate Bay legal verdict and closures left many content downloads unavailable. Along with the ongoing legal issues at Mininova and other sites, options have been scarce for legitimate Bittorrent tracking service. Once a torrent is created with a tracker URL, that tracker has to stay running for normal distribution to continue. LegalTorrents.com has quietly launched a solution with three open Bittorent trackers for its members, including a fully automated, community-based flagging system to blacklist and immediately remove copyright-infringing content. Users submit SHA1 hash values for content with infringing materials. Site members can include and track their own published materials regardless of flagging."

gribll writes "October 2009 marked an important milestone in the history of computing. It was exactly 40 years since the first Multics computer system was used at MIT. The interview is with Multics co-developer, MIT Professor and Turing Award winner Fernando J. Corbato. Multics (Multiplexed Information and Computing Service) is regarded as the foundation of modern time-sharing systems. Multics was the catalyst for the development of Unix and has been used as a model of operating system design since its release four decades ago. There is also a picture gallery of Multics history."

bridgeco writes "Chicago Traffic Court Judges have been throwing out speeding cases in which the driver's speed was measured with a LIDAR. Judges are asking for a special 'Frye Hearing' to determine the accuracy of these devices. Many motorists nabbed for speeding by a laser gun, instead of radar, are seeing their tickets thrown out at Chicago's traffic court because of a legal issue that the city's law department has been unable to overcome. Within the past year judges in Cook County Traffic Court in Chicago determined that speeds captured by lidar were not admissible because the devices had not been proven scientifically reliable in an Illinois court, said Jennifer Hoyle, spokeswoman for the law department, which prosecutes most speeding tickets in the city." (Here's some background on LIDAR from Wikipedia.)

Trepidity writes "The US Supreme Court held oral argument Monday in Bilski, a business-methods patent case that might also have important implications for software patents (We have previously discussed the case several times). The tone of the argument appears to be good news, as the justices were very skeptical of the broad patentability claims. They even brought up a parade of absurd hypothetical patents quite similar to the ones Slashdotters tend to mention in these kinds of debates. Roberts surmised that 'buy low, sell high' might be a patentable business method, Sotomayor wondered if speed-dating could be patentable, Breyer questioned whether a professor could patent a lesson plan that kept his students from falling asleep, and Scalia brought up the old-time radio soap opera Lorenzo Jones, featuring a hare-brained inventor with delusions of getting rich." Patently O has good blow-by-blow coverage of the day's proceedings. Official argument transcripts will be up soon, they say.

eldavojohn writes "A new award-winning thesis from an MIT computer science assistant professor showed that the Nash equilibrium of complex games (like the economy or poker) belong to problems with non-deterministic polynomial (NP) complexity (more specifically PPAD complexity, a subset of TFNP problems which is a subset of FNP problems which is a subset of NP problems). More importantly there should be a single solution for one problem that can be adapted to fit all the other problems. Meaning if you can generalize the solution to poker, you have the ability to discover the Nash equilibrium of the economy. Some computer scientists are calling this the biggest development in game theory in a decade."

eldavojohn writes "A new award-winning thesis from an MIT computer science assistant professor showed that the Nash equilibrium of complex games (like the economy or poker) belong to problems with non-deterministic polynomial (NP) complexity (more specifically PPAD complexity, a subset of TFNP problems which is a subset of FNP problems which is a subset of NP problems). More importantly there should be a single solution for one problem that can be adapted to fit all the other problems. Meaning if you can generalize the solution to poker, you have the ability to discover the Nash equilibrium of the economy. Some computer scientists are calling this the biggest development in game theory in a decade."

Frequent Slashdot contributor Bennett Haselton changes things up today by reviewing The Big Questions: Tackling the Problems of Philosophy with Ideas from Mathematics, Economics and Physics. Questions that big need a big review and you can learn what Bennett has to say about it all by reading below. The Big Questions: Tackling the Problems of Philosophy with Ideas from Mathematics, Economics and Physics author Steven E. Landsburg pages 288 pages publisher Free Press rating 8/10 reviewer Bennett Haselton ISBN 978-1439148211 summary Steven Landsburg uses concepts from mathematics, economics, and physics to address the big questions in philosophy The first thing that I have to admit as a reviewer is that I enjoyed the book -- not just reading it, but scribbling out pages of scratch paper working on the puzzles inspired by the book -- that I probably would have paid up to about $200 for it (despite the fact that I disagreed with many of the conclusions, and even thought some of the arguments were pretty weak). I certainly don't mean that it's better than books by Richard Dawkins, Daniel Dennett, Steven Pinker, Malcolm Gladwell, or Steven Levitt and Steven Dubner (the Freakonomics and SuperFreakonomics team), but it will appeal to many of the same people.

Those authors' books typically marshall a large amount of research data and evidence in support of a thesis that seems contrarian but turns out to be probably true. The Big Questions (released November 3rd with a companion website and blog doesn't do that. The book is divided into many self-contained vignettes and side topics and independent arguments, which are based more on logic and reasoning than externally gathered evidence, and the arguments don't always convince you of the conclusions. But that's part of the fun: many of the arguments in the book are structured so rigorously, almost like mathematical proofs, that if you disagree the conclusion, the challenge is to figure out why you think the conclusion is wrong. (Nobody ever scribbled equations in the margins of Malcolm Gladwell's books trying to figure out if he was "right".)

You'll probably enjoy the book the most if the following are true for you:

• You enjoyed math all the way through high school, especially the paradoxes that seemed to grow out of elementary rules of logic or probability. Sometimes the paradoxes resulted from a flaw in one of the reasoning steps, so that identifying the flaw led to a deeper understanding of how to conduct those steps. And sometimes there really is no flaw in the reasoning, so that the conclusion, no matter how counterintuitive, must be true.
• Eventually, though, you ran out of "paradoxes" that could be described in the language of intermediate mathematics. There are other paradoxes lurking in mathematics, of course (like the celebrated Banach-Tarski paradox), but most of them require you to learn so much mathematics just to understand the paradox, that there aren't enough hours in the day.
• So, you'd be delighted to discover paradoxes in an entirely new field, where arguments built from elementary rules of logic, lead to a conclusion that seems at first to make no sense, but leads to a deeper understanding the more you think about it.

The core philosophy of The Big Questions -- not embodying any of the conclusions, but rather the rules of the game by which those conclusions should be reached -- is expressed in two lines near the end:

If you're objecting to a logical argument, try asking yourself exactly which line in that argument you're objecting to. If you can't identify the locus of your disagreement, you're probably just blathering.

(This quote makes Landsburg sound grumpier than he is; at this point in the book, he's just coming off of describing an exhausting round of e-mail argument with another professor who he felt was not playing by these rules.) I've believed this passionately for a long time, and to me it seems trivially true anyway: If an argument is organized into a series of steps, and you disagree with the conclusion, then some step in the argument must be the first step you disagree with, and if the author feels like each step in their argument follows by airtight logic from the previous step, then that's the point at which one of the two players is wrong. There's nothing more exasperating to me than writing what I think is a well-reasoned logical argument, sending it to the intended audience, and getting back a reply which makes it obvious that the recipient simply read my conclusion, disagreed with it, cleared their throat, and started typing out paragraphs describing their own view. Which they're entitled to, but they missed the point -- I was hoping that if they disagreed with my argument, they could pinpoint exactly what part they disagreed with. (If they had replied with their own argument structured like a sequence of logical steps, then that would at least be a tit-for-tat exchange, but that rarely happens -- people who believe in forming their arguments like rigorous proofs, usually also like to find the error in logical arguments that lead to the opposite conclusion.)

To give you some of the flavor: One chapter in The Big Questions contains an elegant argument against protectionist tariffs: Suppose that an American sells cameras for $80 but a foreigner wants to sell cameras in America for $60 apiece. An American who would have bought the $80 camera will now buy the $60 camera and hence is better off by $20. The seller now has to sell their own cameras for $60 to stay competitive, so they are worse off by at most $20 -- however, if they voluntarily switch to some other business, then they'll be better off than they were when they were selling cameras for $60, and therefore worse off by some amount less than $20 from their original position. So on balance, abolishing protectionist tariffs would be good for Americans. "Therefore," writes Landsburg, "it seems to me that the protectionist's position is even less respectable than the creationist's. If you're convinced that most scientists are liars -- that everything they say about fossils, for example, is false -- then you can be a logically consistent creationist. But you can't be a logically consistent protectionist."

But the best part of reading an argument like that is to try and come up with a counter-argument that is equally rigorous. I think Landsburg is right, but only insofar as it applies to benefits to Americans. That leaves out another part of the equation: whether the production of cheaper foreign goods is harmful to foreigners providing the cheap labor. The textbook answer from economic theory is that the factory jobs must make workers better off (or at least no worse off) than they were before, otherwise they wouldn't have taken the jobs voluntarily. On the other hand, conditions in overseas sweatshops are so notoriously dangerous and unpleasant that it seems hard to believe the opportunities leave workers better off on balance. So you could be a logically consistent protectionist if you believe that: (a) sweatshop workers systematically underestimate how much the factory jobs are harming them; and (b) the harm done to the workers outweighs the benefits of lower prices for Americans. I'm not sure if these statements are true, but they are logically consistent. Still, Landsburg's argument is about as concise as possible and seems to refute any argument that protectionism makes
Americans better off on average.

In another chapter, Landsburg discusses the recent atheist bestsellers such as Richard Dawkins's The God Delusion and suggests that these books are really directed against a non-existent enemy, because the evidence is quite strong that most adults do not really believe the tenets of any major religion anyway. There is the argument that "interfaith dialog" makes no sense if you really believe (as many major religions teach) that your own religion's tenets are settled beyond discussion. There is the argument that since economic theory consistently shows that people respond to threat of punishment, virtually no one behaves as if they actually believe in everlasting damnation after death as punishment for sin. And the fact that the voluntary martyrdom of suicide bombers is vastly more rare than most people believe, and a disproportionate number of those are children (as Landsburg says, "I do not deny that many children believe in God, just as I do not deny that many children believe in Santa Claus"). I'd wondered before about how many people really did believe in God, but in just a few pages this argument had me thinking that the number was a lot lower than I'd ever thought before.

On the other hand, there were some arguments that I didn't spend much time puzzling over at all. Landsburg summarizes the paradox of "free will", and his dismissal of the paradox, basically as follows: The interactions of atoms that make up our brains and our environments, are deterministic processes, so if you know the state of a system at a given point in time, you could predict the state at any future point in time if you had enough computational power (with a caveat about the randomness possibly introduced by quantum physics). "Where, then, is there room for free will?... Easy: There is room for free will on Tuesday, Wednesday, Thursday and Friday, as the human being in question engages in deliberations that ultimately cause his actions." He says that just as "weather" is shorthand for the aggregate of the interactions of trillions of water molecules, "free will" is the same kind of shorthand:

"What caused your decision to get drunk and watch Mystery Science Theater the night before your philosophy final? Free will. An insane person might object that free will can't be it at all, because free will is just a shorthand term for an indescribably complex process involving trillions of neurons, which in turn can be described in terms of quadrillions of atoms and quintillions of subatomic particles. So what? You still have free will, and you know it."

I wrote Landsburg to object that this misses what people really mean by "free will" -- it's not just a shorthand term for the aggregate of particle interactions that make up human choices. It means, very specifically, that you could possibly have done something other than what you did. Landsburg replied to this objection by e-mail: "I dispute that there is any way to make sense of a phrase like 'could possibly have done something else'. I know what it means to say you did something; spacetime consists of all the things that get done; it is what it is." And I agree; it's hard to pin down what the statement means. But it underlies all of our instincts and intuition about human choices and blame: "You could have called yesterday, but you didn't." "I should have studied harder last night." If determinism is true, then these statements make no sense, and therein lies what I think most people mean then they refer to the paradox of determinism vs. free will. I think the issue deserves more thought than it's given in the book.

This is followed by a passage arguing that the controversy over "ESP" is silly, because of course everyone knows certain things by "extra-sensory perception", if by that you mean "things perceived not through the senses" -- like mathematical truths, which are arrived at through thought and not sensory input. Writes Landsburg: "Some of those phenomena have one additional characteristic: They are physically impossible. But if you're going to define ESP by its impossibility, then of course there's no point in debating it... And if impossibility is not a criterion, then mathematical insight is as good an example of ESP -- in the everyday sense of the term -- as any instance of clairvoyance or telepathy." Actually, I think the everyday use of the word "ESP" refers to perceiving facts that do not logically have to be true (so mathematical facts are excluded) -- like "Someone is watching me right now" -- without sensory input. And, once you clarify the definition, most people agree there's no evidence for it, so the whole discussion seems uninteresting.

But even if you throw out 75% of the book's arguments (which is far more than I rejected), you should still enjoy puzzling through the remaining 25% and forming your own conclusions. The most interesting argument in the book, to me, is about how to properly answer the question: How much should the government be willing to spend, to save the life of one of it's citizens? Of course if you're Ayn Rand, the answer is zero, but if you want to answer the question according to the laws of economic efficiency, it's a tough one. Landsburg originally got into the debate by writing a column arguing that ventilator support was not the most efficient way to help the poor. (Unfortunately, he couched it in the language of "ventilator insurance", which I think clouded the issue. I think it would have been more clear to say: "If we're going to spend this money to help the poor at all, it would make more sense to spend it on groceries for a far larger number of people, than to spend it on ventilator support for one person.") Another more liberal economist, Robert Frank, responded with a New York Times editorial arguing with Landsburg's methods and coming up with his own reasoning. I think there are problems with the reasoning on both sides (not logical errors, but rather situations in which the rules that they have adopted, lead to paradoxes and untenable positions -- suggesting that both sides' axioms have to be thrown out), but I still don't know the answer. (My own opinion about the flaws in their logic, and an alternative answer, is at this link: "How much should government spend to save a single life?")

The Big Questions also has excursions into areas of science and mathematics that I had never fully understood before, and in some cases hadn't even thought about. Landsburg describes how he had first learned that colors could be arranged continuously into a color wheel, and later learned that they could be arranged continuously along a line according to their wavelengths, and then a friend pointed out the contradiction. Which is it? Do colors vary continuously in two dimensions (forming a wheel) or one (forming a line)? Or, wait a minute, we measure colors according to the strength of their red, green, and blue components, so don't they vary continuously in three dimensions? Well, the answer is in there.

There are also chapters on Heisenberg's uncertainty principle, Gödel's incompleteness theorem, and the quantum phenomenon of "spooky action at a distance", which explain all of the concepts more clearly than I'd ever heard them explained anywhere else. I think that most writers attempting to explain these concepts err either on the side of being too precise -- determined that everything they right be correct, with no regard for whether they reader grasps it or not -- or too vague -- giving the general air of mystery, but not explaining the rules governing how a phenomenon works, and how to work with those rules to derive other conclusions from them. Landsburg's chapter simply begins, "This chapter is full of lies. That's because I'll be explaining the foundations of quantum mechanics, and I assume that if you wanted a careful accounting of every detail, you'd be reading a textbook." The text then gives an example of considering an electron that moves in a conceptual "circle", where at some points on the circle it has a greater probability of manifesting itself in one location if you examine it, and at other points it has a greater probability of manifesting itself in another location. He uses this to dispel a common misconception about the uncertainty principle:

You're just idly wondering where the electron is. In most circumstances, quantum mechanics says that it's quite impossible for you to know the answer to that question.

Aha! A fundamental limitation on human knowledge, no? No. Here's why: Most of the time, the electron is nowhere. Asking "Where is the electron?" is akin to asking "What is the electron's favorite movie?". It's a nonsense question. The inability to answer nonsense questions is not a fundamental limitation on knowledge.

How can the electron be nowhere? Because electrons behave nothing at all like anything you're familiar with. Instead of a location, the electron has a quantum state.

This clarified something for me that had bugged me for years. I never took a course in quantum physics, but I had indeed always assumed that electrons did have a "location" and the uncertainty principle referred to a limit on our ability to determine that location. Unfortunately there are probably many people who get through an entire course in quantum physics without getting this cleared up.

Balanced against these valuable insights are some libertarian arguments that are probably nothing you haven't heard before, especially if you have read of one of Landsburg's earlier books, Fair Play -- subtitled "What your child can teach you about economics, values, and the meaning of life", although the book was clearly about what he was teaching to his daughter. Many reviewers of Fair Play took note of passages like this one:

Most people have instinctive sympathy for the man who says "I tried for months to get a job and nobody would hire me. Only in desperation did I turn to theft." The same people have only scorn for the man who says "I tried for months to get a date and nobody would go out with me. Only in desperation did I turn to rape."

While I think most rape victims would have some choice words about the comparison, I was more unpersuaded because the passage wasn't structured like a true argument. In a good argument -- like Landsburg's earlier argument against protectionist tariffs -- -- you start with premises that seem apparently true, proceed by steps that seem apparently valid, and end with a conclusion that may not have been obvious from the outset. But in this case, the premise is the argument -- either you think rape and theft are comparable, or you don't. I don't think they are, because (a) the harm to a rape victim is out of proportion to the "benefit" to the rapist, and (b) notwithstanding the claims of college males, you won't actually die without sex. (Just as a thought experiment, if you would die without sex, and a man hadn't been able to get any women to sleep with him, and the government didn't provide any sort of sex "safety net", more people probably would feel sympathy for the rapist, if he only did it to save his own life.)

Some passages in The Big Questions are recycled from Fair Play and require a (just) slightly more thoughtful rebuttal. Landsburg argues that most parents, deep down, must not believe in redistributive taxation because

"I have never, ever, heard a parent say to a child that it's okay to forcibly take toys away from other children who have more toys than you do. Nor have I ever heard a parent tell a child that if one kid has more toys than the others, then it's okay for those others to form a 'government' and vote to take those toys away."

OK, but... I have also never heard a parent tell their child that it was OK to build a "jail" and put other kids in that "jail" for wrongdoing. And yet almost everyone, even libertarians, supports some form of imprisonment for lawbreakers. The lesson here is that there are some powers that are appropriate to delegate to a democratically elected government, with all the right checks and balances, but that you don't want random vigilantes seizing for themselves. So if you want a principled argument against taxation, it would take more than that.

And other passages in Fair Play deservedly did not make the cut of being imported into The Big Questions:

The massacre at Waco took place only days after my daughter (then aged six) had asked me how the government uses our tax dollars. When she walked in on the television coverage of flamed and carnage, I told her that now she was seeing the answer to her question. And when she heard that there were children in there, that they were burning children, her eyes grew wide with horror, and I both hope and believe that she will never forget that moment.

If you want 230 pages of that, then Fair Play is the book for you!

Of the libertarian arguments that did get carried over into The Big Questions, I think the problem with most of them is not that I think the conclusion is wrong, but, again, that the whole argument is the premise, and if you disagree with the premise then there's nothing to think about. For example:

Bert wants to hire an office manager and Ernie wants to manage an office. The law allows Ernie to refuse any job for any reason. If he doesn't like Albanians, he doesn't have to work for one. Bert is held to a higher standard: If he lets it be known that no Albanians need apply, he'd better have a damned good lawyer.

These asymmetries grate against the most fundamental requirement of fairness -- that people should be treated equally, in the sense that their rights and responsibilities should not change because of irrelevant external circumstances.

But I think the laws do treat all people equally, because they apply equally whether Bert is discriminating in deciding whether to hire Ernie, or whether Ernie is discriminating in deciding whether to hire Bert. The laws don't apply equally to all roles that people play, which is the distinction that Landsburg is highlighting -- but laws never apply equally to different roles, since roles are defined by what we do, and what is the point of laws, except to draw distinctions based on behaviors? So there may be some other argument against anti-discrimination laws, but "symmetry" by itself wouldn't be enough.

A footnote in this chapter of The Big Questions says, "Portions of this chapter are adapted from my earlier book Fair Play." In the margin where I'd been scribbling all of my notes and equations and counterarguments, I wrote, "That's what's wrong with it!"

And yet, as I said, I would probably have paid up to about $200 for the book, based on how much I enjoyed the parts that I did like. At one point Landsburg praises an insight from Daniel Dennett and Douglas Hofstadter and adds, "You should read all their books." Yes, and all of Richard Dawkins's and Malcolm Gladwell's and Steven Pinker's and Dubner's and Levitt's books, for starters. Landsburg himself would probably agree that it's more important to read those books, than this one. But there's time in your life to read The Big Questions as well. It's even structured so you can consume it in bite-sized portions while taking a break from working your way through those other books -- which are, in truth, more valuable, but not as much fun.

You can purchase The Big Questions: Tackling the Problems of Philosophy with Ideas from Mathematics, Economics and Physics from amazon.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

An anonymous reader writes "Instead of spending the next 10 years trying to find a Flash implementation for Linux or OS X that doesn't drain CPU cycles like there's no tomorrow, NeoSmart Technologies has made an HTML5 viewer for YouTube videos. It loads YouTube videos in an HTML5 video container and streams (with skip/skim/pause/resume) against an MP4 resource, and an (optional) userscript file can update YouTube pages with the HTML5 viewer. The latest versions of Firefox, Chrome, and Safari are supported. Personally, I can't wait until the major video sites default to HTML5 and we can finally say goodbye to Flash."

Hugh Pickens writes "The Telegraph reports that the Japanese trawler Diasan Shinsho-maru has capsized off the coast of China, as its three-man crew dragged their net through a swarm of giant jellyfish (which can grow up to six feet in diameter and travel in packs) and tried to haul up a net that was too heavy. The crew was thrown into the sea when the vessel capsized, but the three men were rescued by another trawler. Relatively little is known about Nomura's jellyfish, such as why some years see thousands of the creatures floating across the Sea of Japan on the Tsushima Current, but last year there were virtually no sightings. In 2007, there were 15,500 reports of damage to fishing equipment caused by the creatures. Experts believe that one contributing factor to the jellyfish becoming more frequent visitors to Japanese waters may be a decline in the number of predators, which include sea turtles and certain species of fish. 'Jellies have likely swum and swarmed in our seas for over 600 million years,' says scientist Monty Graham of the Dauphin Island Sea Lab in Alabama. 'When conditions are right, jelly swarms can form quickly. They appear to do this for sexual reproduction.'"

AMESN writes "The Fermi Gamma-ray Space Telescope, launched last year, detects gamma rays from light years away, but recently it detected gamma rays from lightning on Earth. And the energy of the gamma rays is specific to the decay of positrons, which are the antimatter flavor of electrons. Finding antimatter in lightning surprised researchers and suggests the electric field of the lightning somehow got reversed."

Philip K Dickhead writes "Is Douglas Adams scripting the saga of sorrows facing the LHC? These time-traveling Higgs-Boson particles certainly exhibit the sign of his absurd sense of humor! Perhaps it is the Universe itself, conspiring against the revelations intimated by the operation of CERN's Large Hadron Collider? This time, it is not falling cranes, cracked magnets, liquid helium leaks or even links to Al Qaeda, that have halted man's efforts to understand the meaning of life, the universe and everything. It now appears that the collider is hindered from an initial firing by a baguette, dropped by a passing bird: 'The bird dropped some bread on a section of outdoor machinery, eventually leading to significant overheating in parts of the accelerator. The LHC was not operational at the time of the incident, but the spike produced so much heat that had the beam been on, automatic failsafes would have shut down the machine.'"

Philip K Dickhead writes "Is Douglas Adams scripting the saga of sorrows facing the LHC? These time-traveling Higgs-Boson particles certainly exhibit the sign of his absurd sense of humor! Perhaps it is the Universe itself, conspiring against the revelations intimated by the operation of CERN's Large Hadron Collider? This time, it is not falling cranes, cracked magnets, liquid helium leaks or even links to Al Qaeda, that have halted man's efforts to understand the meaning of life, the universe and everything. It now appears that the collider is hindered from an initial firing by a baguette, dropped by a passing bird: 'The bird dropped some bread on a section of outdoor machinery, eventually leading to significant overheating in parts of the accelerator. The LHC was not operational at the time of the incident, but the spike produced so much heat that had the beam been on, automatic failsafes would have shut down the machine.'"

recoiledsnake writes "A few years after the Con Kolivas fiasco, the FatELF project to implement the 'universal binaries' feature for Linux that allows a single binary file to run on multiple hardware platforms has been grounded. Ryan C. Gordon, who has ported a number of popular games and game servers to Linux, has this to say: 'It looks like the Linux kernel maintainers are frowning on the FatELF patches. Some got the idea and disagreed, some didn't seem to hear what I was saying, and some showed up just to be rude.' The launch of the project was recently discussed here. The FatELF project page and FAQ are still up."

CNETNate writes "Is the American mains socket really so much worse than the Italian design? And does the Italian socket fail at rivaling the sockets in British homes? This feature explores, in a not-at-all-parodic-and-anecdotal fashion, the designs, strengths and weaknesses of Earth's mains adapters. There is only one conclusion, and you're likely not to agree if you live in France. Or Italy. Or in fact most places." (For more plug pics and details, check out Wikipedia's list of the ones in current use.)

Dr_Barnowl writes "In an occurrence first postulated in sci-fi and later lampooned by stick figures, it seems that a blogger has actually been responsible for the mass resignation of elected officials — a British town council — largely by calling them 'jack***es' and Nazis. What's next? The deposition of a president with 'your mom' smacktalk?"

farnsworth writes "Tony Alfrey has put together a fascinating page with some history, analysis, and possible explanations for what ultimately went wrong with the recent emergency repair of the San Francisco-Oakland Bay Bridge. The bridge has been closed for days and is not scheduled to open for days to come, hugely inconveniencing more than 250,000 people a day. His analysis touches on possibly poor welding, a possibly flawed temporary fix, and the absence of a long-term fix or adequate follow-up by Caltrans, the agency responsible for the bridge. Slashdot is a great engineering community; what other insights do you have on the bridge situation?"

KentuckyFC writes "Great things are expected of terahertz waves, the radiation in the electromagnetic spectrum between microwaves and the infrared. Terahertz waves pass through non-conducting materials such as clothes, paper, wood and brick and so cameras sensitive to them can peer inside envelopes, into living rooms and 'frisk' people at distance. That's not to mention the great potential they have in medical imaging. Because terahertz photons are not energetic enough to break chemical bonds or ionize electrons, it's easy to dismiss fears over their health effects. And yet the evidence is mixed: some studies have reported significant genetic damage while others, although similar, have reported none. Now a team led by Los Alamos National Labs thinks it knows why. They say that although the forces that terahertz waves exert on double-stranded DNA are tiny, in certain circumstances resonant effects can unzip the DNA strands, tearing them apart. This creates bubbles in the strands that can significantly interfere with processes such as gene expression and DNA replication. With terahertz scanners already appearing in airports and hospitals, the question that now urgently needs answering is what level of exposure is safe."

DustyShadow writes "In the case In re United States, Judge Mosman ruled that there is no constitutional requirement of notice to the account holder because the Fourth Amendment does not apply to e-mails under the third-party doctrine. 'When a person uses the Internet, the user's actions are no longer in his or her physical home; in fact he or she is not truly acting in private space at all. The user is generally accessing the Internet with a network account and computer storage owned by an ISP like Comcast or NetZero. All materials stored online, whether they are e-mails or remotely stored documents, are physically stored on servers owned by an ISP. When we send an e-mail or instant message from the comfort of our own homes to a friend across town the message travels from our computer to computers owned by a third party, the ISP, before being delivered to the intended recipient. Thus 'private' information is actually being held by third-party private companies."" Updated 2:50 GMT by timothy: Orin Kerr, on whose blog post of yesterday this story was founded, has issued an important correction. He writes, at the above-linked Volokh Conspiracy, "In the course of re-reading the opinion to post it, I recognized that I was misreading a key part of the opinion. As I read it now, Judge Mosman does not conclude that e-mails are not protected by the Fourth Amendment. Rather, he assumes for the sake of argument that the e-mails are protected (see bottom of page 12), but then concludes that the third party context negates an argument for Fourth Amendment notice to the subscribers."

binarybum writes "Often forgotten, but the independent open source spirit lives strong in the once Mozilla project — now SeaMonkey. Version 2.0 is finally out and rivals Firefox with similar features but integrated email with a small footprint." The Register has a short piece on the 2.0 release, which mentions that SeaMonkey is now based on Firefox 3.5.4. Stephen Shankland lists some of the features in a handy bullet-point style, too. I'm using the new release right now; it's crashed once — but only once — in several hours of use.

Ponca City, We love you writes "The NY Times reports that after a journey of 7.3 billion light-years, a race between gamma rays ranging from 31 billion electron volts to 10,000 electron volts, a factor of more than a million, in a burst from an exploding star, have arrived within nine-tenths of a second of each other. A detector on NASA’s Fermi Gamma-Ray Space Telescope confirmed Einstein’s proclamation in his 1905 theory of relativity that the speed of light is constant and independent of its color, energy, direction or how you yourself are moving. Some theorists had suggested that space on very small scales has a granular structure that would speed some light waves faster than others — in short, that relativity could break down on the smallest scales. Until now such quantum gravity theories have been untestable because ordinarily you would have to see details as small as the so-called Planck length, which is vastly smaller than an atom — to test these theories in order to discern the bumpiness of space."

waderoush writes "Physicist Shahriar Afshar is famous as the designer of the 'Afshar Experiment,' a study first described in 2004 that called into question Neils Bohr's observation that it's impossible to observe light's wave-like properties and its particle-like properties at the same time. Not surprisingly, the idea met with widespread resistance in the physics community. While he waits for the controversy to settle down, Afshar himself is taking a detour into the video game world. He's now the president and CTO of Immerz, a Cambridge, MA-based startup building an 'acousto-haptic' interface that drapes over a gamer's shoulders and turns video game sound into (literally) chest-pounding vibrations. Xconomy was allowed to test the device, and has the full story behind Afshar's unusual journey and the company's hopes for enhancing PC and console gamers' experience of action/adventure/first-person-shooter titles."

MojoKid writes "Intel has just released a firmware update for their 34nm Gen X25-M solid state drives that not only boosts sequential write performance, but adds support for the TRIM command as well. A performance optimization tool is also being released today, for users of Windows Vista and XP, who won't be able to take advantage of TRIM. After being flashed with the new firmware update, Intel's 34nm Gen 2 X25-M 160GB drive offered increased performance in a myriad of benchmarks shown here, and sequential write performance was increased on the order of 30%."

docinthemachine writes with word of some "research just presented at the 65th ASRM on 4K surgery. Using bleeding-edge Hollywood 4K cameras coupled to laparoscopes, surgery was performed in 4K, or 4X the resolution of HD. Since laparoscopy is performed while viewing on a video monitor, this is a huge advancement of resolution and clarity for the surgeon. It only took a million dollars of projectors to show it to the audience."

An anonymous reader writes "The first public white space network officially launched on Wednesday in Claudville, Virginia. It uses sensing technology from Spectrum Bridge with software and Web cams supplied by Microsoft and PCs from by Dell. The project was funded the TDF Foundation. White space networks use unlicensed television spectrum and have been called 'WiFi on steroids.' They offer more bandwidth, over larger areas, than does WiFi. IT companies duked it out with broadcasters for years to get white spaces approved by the FCC. They finally got the FCC's nod in November, 2008."

An anonymous reader writes "This week marks the 125th anniversary of the International Meridian Conference, which determined that the prime meridian (i.e., longitude 0 0' 00") would travel through Greenwich, UK. One of the reasons that Greenwich was agreed upon 'was that 72% of the world's shipping already depended on sea charts that used Greenwich as the Prime Meridian.' Sandford Fleming's proposal of a single 24-hour clock for the entire world, located at the center of the Earth and not linked to any surface meridian, was rejected / not voted on, as it was felt to be outside the purview of the conference."

An anonymous reader writes "This week marks the 125th anniversary of the International Meridian Conference, which determined that the prime meridian (i.e., longitude 0 0' 00") would travel through Greenwich, UK. One of the reasons that Greenwich was agreed upon 'was that 72% of the world's shipping already depended on sea charts that used Greenwich as the Prime Meridian.' Sandford Fleming's proposal of a single 24-hour clock for the entire world, located at the center of the Earth and not linked to any surface meridian, was rejected / not voted on, as it was felt to be outside the purview of the conference."

An anonymous reader writes "This week marks the 125th anniversary of the International Meridian Conference, which determined that the prime meridian (i.e., longitude 0 0' 00") would travel through Greenwich, UK. One of the reasons that Greenwich was agreed upon 'was that 72% of the world's shipping already depended on sea charts that used Greenwich as the Prime Meridian.' Sandford Fleming's proposal of a single 24-hour clock for the entire world, located at the center of the Earth and not linked to any surface meridian, was rejected / not voted on, as it was felt to be outside the purview of the conference."

Following up our earlier discussion of the theory that the Higgs boson might time-travel to avoid being found, reader gpronger notes an interview with MIT (and LHC) physicist Steven Nahn, in which he comments on Nielsen and Ninomiya's unlikely-sounding theory. "The premise is fairly crazy, but many things in physics are constructed that way... The difference here is that... previous 'crazy' ideas gave consequences that were clearly testable and attestable to the new nature of the theory, in an objective manner, and involved the behavior of inanimate objects (i.e., not humans). However, in this case, the consequences seem quite contrived... Exactly in line with their argument, I could say that Nature abhors the Chicago Cubs, such that the theory which describes the evolution of our universe prescribed Steve Bartman to interfere on October 14, 2003, extending the 'bad luck' of the Cubbies."

Diamonddavej writes "The BBC reports that researchers at the University of Edinburgh have found that Galactic Cosmic Rays (GCRs) somehow makes trees grow faster. GCRs vary according to the 11-year solar cycle, with more GCRs hitting the Earth during solar minimum when there is a lull in the solar wind, which normally acts to protect the inner solar system from external galactic radiation. The mechanism might have something to do with GCRs increasing cloud cover, which diffuses sunlight and increases the efficiency of photosynthesis. Nevertheless, the researchers remain mystified and are requesting further ideas and research collaboration to test hypotheses. (How about Radiation Hormesis, AKA 'Vitamin-R?')" Here is the paper's abstract at the journal New Phytologist. The researchers say: "The relation of the rings to the solar cycle was much stronger than to any climatological factors. ... As for the mechanism, we are puzzled."

ewsnow writes "The Focus Fusion Society reports that the scientists and engineers at Lawrenceville Plasma Physics have finally built an operational Dense Plasma Focus device. While still at less than half power, they were able to achieve a pinch on their device. The small company that Eric Lerner started recently gathered enough funding to start a two-year study on the validity of his theory regarding fusion-inducing plasmoids. If the theory holds, the device will produce more electricity than it consumes. In contrast to the billions of dollars spent on Tokamak fusion (think ITER), LPP is conducting their research on a budget around a million dollars. Yet, if it works, it will provide nuclear fusion with much simpler equipment and much less cost. Eric Lerner and Focus Fusion have been discussed on Slashdot before."

ewsnow writes "The Focus Fusion Society reports that the scientists and engineers at Lawrenceville Plasma Physics have finally built an operational Dense Plasma Focus device. While still at less than half power, they were able to achieve a pinch on their device. The small company that Eric Lerner started recently gathered enough funding to start a two-year study on the validity of his theory regarding fusion-inducing plasmoids. If the theory holds, the device will produce more electricity than it consumes. In contrast to the billions of dollars spent on Tokamak fusion (think ITER), LPP is conducting their research on a budget around a million dollars. Yet, if it works, it will provide nuclear fusion with much simpler equipment and much less cost. Eric Lerner and Focus Fusion have been discussed on Slashdot before."

ewsnow writes "The Focus Fusion Society reports that the scientists and engineers at Lawrenceville Plasma Physics have finally built an operational Dense Plasma Focus device. While still at less than half power, they were able to achieve a pinch on their device. The small company that Eric Lerner started recently gathered enough funding to start a two-year study on the validity of his theory regarding fusion-inducing plasmoids. If the theory holds, the device will produce more electricity than it consumes. In contrast to the billions of dollars spent on Tokamak fusion (think ITER), LPP is conducting their research on a budget around a million dollars. Yet, if it works, it will provide nuclear fusion with much simpler equipment and much less cost. Eric Lerner and Focus Fusion have been discussed on Slashdot before."

ewsnow writes "The Focus Fusion Society reports that the scientists and engineers at Lawrenceville Plasma Physics have finally built an operational Dense Plasma Focus device. While still at less than half power, they were able to achieve a pinch on their device. The small company that Eric Lerner started recently gathered enough funding to start a two-year study on the validity of his theory regarding fusion-inducing plasmoids. If the theory holds, the device will produce more electricity than it consumes. In contrast to the billions of dollars spent on Tokamak fusion (think ITER), LPP is conducting their research on a budget around a million dollars. Yet, if it works, it will provide nuclear fusion with much simpler equipment and much less cost. Eric Lerner and Focus Fusion have been discussed on Slashdot before."

TheClockworkSoul sends in an article up at Scientific American, from which we quote: "Stem cells so far have been used to mend tissues ranging from damaged hearts to collapsed tracheas. Now the multifaceted cells have proved successful at regrowing bone in humans. In the first procedure of its kind, doctors at Cincinnati Children's Hospital Medical Center replaced a 14-year-old boy's missing cheekbones — in part by repurposing stem cells from his own body. To create the new bones, which have become part of the patient's own skull structure and have remained securely in place for four and a half months, the medical team used a combination of fat-derived stem cells, donated bone scaffolds, growth factors, and bone-coating tissue. The technique, should it be approved for widespread use, could benefit some seven million people in the US who need more bone — everyone from cancer patients to injured war veterans."

Smelly Jeffrey writes "The BBC is reporting that the LHC has had all eight of its sectors cooled to 1.9 Kelvin. Their tagline is that it is now 'colder than deep space,' referring to the CMB. LHC engineers have spent nearly $40,000,000 USD on a new system to prevent the 'quench' condition that caused the LHC to be down for warming, repairs, and re-cooling over the last year. The LHC is now cold enough to begin colliding particles in search of the Higgs Boson. High power collisions won't be started until late December, or perhaps early January. However, a low-power beam through parts of the collider could be tested as early as next week!"

Smelly Jeffrey writes "The BBC is reporting that the LHC has had all eight of its sectors cooled to 1.9 Kelvin. Their tagline is that it is now 'colder than deep space,' referring to the CMB. LHC engineers have spent nearly $40,000,000 USD on a new system to prevent the 'quench' condition that caused the LHC to be down for warming, repairs, and re-cooling over the last year. The LHC is now cold enough to begin colliding particles in search of the Higgs Boson. High power collisions won't be started until late December, or perhaps early January. However, a low-power beam through parts of the collider could be tested as early as next week!"