Slashdot Mirror

Kaypro writes "According to the scoop over at Ain't it Cool, it seems that Fox has decided that there's not enough viewers to keep the Firefly series on the air, but somehow there's enough fans to make money off DVD sales. Go figure. Included in the set will be the entire season plus unaired episodes and the original pilot in full 16:9 format. Extras I assume are included as well. No release date has been set as of yet." The missing episodes will be nice. In order will be nice. Such a good show. The last couple of episodes were just awesome.

An anonymous "The tax deadline is fast approaching (here in the USofA). Like some of you, I have a small business on the side. Since I haven't figured out the 'step 2' yet (the one before 'step 3: profit!!!'), my revenues were zero for all of last year, and the expenses were just about zero too. What is the quickest and least painful way for a person in my situation to do his taxes? I don't want to spend 100s of dollars going to a paid professional, just to have him put all zeroes in the form. If you have done your taxes and are a small business (C-corp, don't ask why...), do you have any tips?" This is also your chance to offer all the heretofore unsolicited tax advice you've been bottling up all year.

sjanich writes "A discussion has begun at SAGE on an updated title to replace "Systems Administrator". I figure more sysadmins are reading Slashdot than are reading SAGEwire. Rob Kolstad of SAGE wrote: 'What in the world do we call the collective group of those people who make computers work properly? I'm not talking about users, and I'm not talking about software developers. I am thinking of: system administrators, LAN administrators, network administrators (both kinds!), security administrators, e-mail administrators, desktop support groups, database administrators, and all the other kinds of support that keep the IT function of an institution running -- what is this huge group called?' My favorite options are "Computer Infrastructure Practitioner" or "Computer Infrastructure Specialist". The original discussion can be found here at SAGEwire."

althalus writes "PLUG, the Provo Linux Users Group, of Utah recently requested representatives from SCO to answer the questions of the local *nix users regarding their lawsuit. Since this topic has been the point of a bit of discussion here on slashdot ( 1, 2, 3, 4) We figured it might be nice to get some of the questions from here. SCO has agreed to allow us to submit a list of questions ahead of time, and we will contain some of the highest moderated slashdot questions. SCO has warned us, that since this is an active lawsuit, there are some questions that obviously cannot be answered at this time, but overall, feel free to ask. Notes/Answers will be submitted to slashdot afterwards." Think of this as a third party Ask SCO almost anything.

Tech writes "Until a few years ago, whenever geobiologists found an ancient rock looked like a fossilized stromatolite, they figured it was a stromatolite, a layered structure built by colonies of microorganisms. But in 1996 it was shown that stromatolite-like structures could be formed through a simple chemical process. So how does one separate the wheat from the chaff, the true stromatolites from the fakes? Frank Corsetti and Michael Storrie-Lombardi think they may have found a way. Their approach is simplicity itself: Create a digital image of the rock; then compress the image file. The more the file shrinks, the more likely it is that life was responsible for building the layers."

Duane Gran contributes this review of Patterns of Enterprise Application Architecture, writing "The title of this book is a mouthful and the author, Martin Fowler, confronts headfirst complex topics of concern to software developers and architects. Fowler is a respected figure in software engineering circles, and his latest book is an attempt to codify best practices he learned in the trenches and through peer relationships. Many of the patterns will resonate with experienced developers, but Fowler's talent explaining abstract concepts will afford even the most grizzled reader many 'aha!' moments." Read on for the rest of Duane's review. Patterns of Enterprise Application Architecture author Martin Fowler pages 560 publisher Addison Wesley Professional rating 10/10 reviewer Duane Gran ISBN 0321127420 summary Excellent analysis of complex problem solving

The book is honest and upfront about grey areas in addition to (nearly) hard and fast rules. Fifty one patterns are described in an organized fashion, grouped by theme. The first section gives an overall narrative tying together the concepts while the remaining 4/5 of the book is devoted to short chapters on each pattern. In this way the book works well on two levels, as a reference and a tutorial. Code examples are given in Java and C# where most appropriate for the given pattern, however most examples use Java.

Much of the book centers around the task of Object-Relational mapping between the in-memory model of an application and the datastore. There are a surprising number of design choices in enterprise systems and I often found myself nodding in agreement with the logic behind the patterns. After establishing that mixing presentation and domain logic is a mistake worthy of horse-whipping, a plethora of smart alternatives are given.

I found this to be one of the more enlightening books I've read, and place it alongside Effective Java and Design Patterns Explained as canonical books for the Java developer. I'm a fan of the O'Reilly Java series, which excels in the HOW-TO category of books, but I've recently taken to the Addison-Wesley publications, which deal less with the nuts and bolts, and for lack of a better word are more like WHY-TO books.

Aside from being an excellent book, I also liked that it is hardbound and includes a bookmark (simple nylon strap from the binding). This is a fitting presentation for such a quality book.

The only complaint I might have is that sometimes the code examples are a tad brief for my taste. The author is fond of declaring a class as follows:

class ArtistMapper ...

From the UML diagrams provided I was often able to conclude that ArtistMapper extends AbstractMapper or that ArtistMapper implements Mapper, but as I read the examples I yearned for completeness. Two guesses come to mind as for this choice:

1. The author explains that the code examples are meant to facilitate understanding, not to provide boilerplate code. Fowler's appreciation for the complexity of software systems leads him to caution the reader to implement the examples without careful consideration to the context in which they are deployed. Partial code examples forces the reader to fill the gaps, and in the process may think more critically about it.
2. There is often more than one way to do things, like abstracting an interface in Java. The choice of extending an Abstract class or implementing an interface implies a subtle, but far-reaching, development choice. Similar to the previous point, I think Fowler may want the reader to choose a concrete class implementation appropriate for his or her application.

On the whole, I really enjoyed the book and would recommend it without hesitation to fellow software developers and architects.

You can purchase Patterns of Enterprise Application Architecture from bn.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

Anonymous Coward writes "Dell released a line of printers today, manufactured by Lexmark. As covered by by Yahoo they '..contain a chip that disables the cartridge if it is refilled and replaced in a Dell printer..' and 'The cartridges are different sizes than cartridges from other printer vendors, including Lexmark, the spokesperson said. This will limit the amount of knockoff cartridges available, but only until someone figures out how to reverse engineer Dell's cartridges.'" In the interest of full disclosure, note that the poster sells knockoff carts.

MojoDog writes "Serial ATA drives are still as scarce as hen's teeth but what models are trickling out from Seagate and Maxtor, are beginning to look promising. This article and performance analysis shows the new DiamondMax Plus 9 SATA Hard Drive putting up some impressive figures in standard SATA 150 and SATA 150 RAID 0 configurations."

orangerobot writes "ViewSonic has released an interesting new box that turns any VGA monitor into an HDTV video display with support for standards up to 1080i. At $399 it's a little on the pricey side, but according to the review from EnvyNews, the unit performs pretty well." Like the review, I can't figure out what the target market for this is, but it's still a cool device.

peterwayner writes "One mathematician I know told me that the most important lesson he learned was how to read a math book. It did no good, he said, to just start plowing through the theorems because that brought confusion. The key was to skim the book five or six times to get an idea of what the writer was trying to do. Then, and only then, was it possible to figure out the equations. This is what Barry Mazur tries to do in his book Imagining Numbers . There are some equations, graphs and diagrams, but first and foremost he offers plenty of poetry, philosophy and history to lay a foundation for understanding imaginary numbers." Peter's review continues below -- despite its complicated, abstract subject matter, he says that it's "simple enough to be accessible to most who will be interested in it." Imagining Numbers author Barry Mazur pages 267 publisher Farrar, Straus and Giroux rating 8 reviewer Peter Wayner ISBN 0374174695 summary How to imagine imaginary numbers like the square root of minus fifteen.

Much of modern mathematical literature is structured with crisp, scripted precision. First there is theorem one, then theorem two, which leads to theorem three, which could only be followed by theorem four, and so on until we reach theorem n. If you want to learn the mathematics of complex numbers (a +bi), then classic texts (this or this) will get you there.

Some may like this logical progression, but it leaves others cold in the same way that crisp, modern architecture by Mies van de Rohe leaves some craving a more layered, fractured, ornate, organic and just plain fun place to live and work. Less isn't more, as Robert Venturi said, less is a bore.

If you happen to feel a chill when churning through an assembly line of theorems, you might enjoy the treatment of Mazur, a professor at Harvard who seems to spend as much time reading poets like Rilke or Stevens as he does examining old mathematical texts. Mazur is not the kind of machine that turns coffee into theorems-- he's too busy stopping to smell the rhetorical flourishes.

The book isn't aimed at mathematicians per se. The publisher, Farrar, Strauss and Giroux specializes in mainstream literature and that's probably the best pigeonhole for this book. Mazur wants the reader to understand how to think about imaginary numbers, not evaluate some integrals -- and that reader could really be anyone with the desire to think about mathematical things. The book is simple enough to be accessible to most who will be interested in it.

In many ways, Mazur attempted a much harder task than just teaching complex analysis. It's one thing to learn how to find the roots of polynomials, but it's another thing to try to help people get a feeling or an intuition for the square root of minus fifteen. Integers are easy to understand and even feel by counting out things, but imaginary numbers don't seem to exist. Mathematicians have spent many years trying to find the best metaphors and structures to understand how to find answers for all polynomials and it's never been an easy struggle.

The best part of the book is, without doubt, the historical treatment of how other mathematicians confronted the question of irrational and complex numbers. These ideas have always been hard to grasp and it took time to evolve the most compact and consistent nomenclature.

If you're interested in mathematics as more than just a mechanism that churns out answers, you'll probably enjoy the book. It's a light, friendly, philosophical expedition looking for a way to make imaginary numbers work in our minds.

Peter Wayner is the author of Translucent Databases , a book on how to imagine databases that hold no information yet still do useful work. You can purchase Imagining Numbers from bn.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page.

DaveAtFraud writes "The Direct Marketing association (DMA) has released a study (PDF only) showing that the amount of tax revenue supposedly 'lost' by the states due to on-line sales has been significantly overstated. Proponents of online taxes quote several University of Tennessee studies which found states missed out on $13.3 billion in 2001 collections. In contrast to UT's claim, the DMA's study says the figure was closer to $1.9 billion. And while UT finds states could be stiffed by $55 billion in 2011, the DMA claims it's more like $4.5 billion. You get the picture (I wonder where UT gets its funding? It wouldn't be the state of Tennessee by any chance would it?). The DMA study points out flawed growth assumptions and outright falsehoods (e.g., counting certain business-to-business transactions that actually did create tax revenue for the state in its count of missed taxes) in the UT studies that cast a shadow of doubt on the UT studies' validity."

spookymonster asks: "I'm a mainframe sysadmin for a Fortune 50 company. I'm also a Linux hobbyist. About 18 months ago, my request for a proof-of-concept z/Series testbed was granted, and the results have been encouraging. Despite this, senior management keeps saying that Linux isn't ready for prime time. Today, I was finally able to corner one of them and ask him what exactly his issue was with Linux. His answer: Indemnity. All our other software vendors provide protection against someone suing us for using their product. Who protects us if a third party sues us, claiming Linux infringes on their copyrights? Sadly, I was at a loss for words. I've done some digging on Google, but haven't really found anything on the subject. With the SCO/IBM lawsuit heavy in the headlines of late, I figured I'd turn to the Slashdot community for answers. How do I respond to questions about Linux and indemnification protection?"

toyotaboy writes "Saw this in 'design news' magazine. It's a bicycle using an engine that looks like something pulled off of an R/C airplane. He uses a gear reduction system as well as a overrunning clutch to keep the engine running while stopped. Claims to get 20 mile range from its 1/4 gallon gas tank (80mpg). If you figure most engines like that are 30k rpm with 1:100 gear reduction, and an average bike rim is 26", you should get potentially 1,458,000 inches per hour, or 23mph! He goes on to say that similar devices in electric form (segway) fail because of their heavy 80lb weight and limited 10-15 mile range (and where do you recharge?) This thing can be filled back up at any gas station."

Anonymous for the Moment asks: "While working in a grant-paid position in a big University, I had access to massive amounts of administrative health data. I was repeatedly, over the course of months, told to take data and not tell the people who were in charge of it that I had it (which is a big no-no). I informed the people who held the data, but they were mostly non-responsive, and I figured this was because they would get in trouble with the province and the people who's records they were keeping. I finally blew the whistle to the Ethics Committee, but it has been over six months, and they too have not responded. I am wondering how long I should wait before going to the media and letting the people of the province know that their data is not being treated with respect. Has anyone else had an experience where they were told to access other's data without permission? I am aware of others at my University who have been put in similar situations, but is it just my University, or is it more widespread than that?"

manyoso writes "Sun is waisting no time taking advantage of the SCO lawsuit against IBM. They are making statements trying to play up Solaris as a safe harbor for worried Linux and IBM users. John Loiacono, VP of Sun's operating platforms group, "For people looking at the issues at hand, we are a safe harbor. We have absolute rights to our technology ... We're changing our strategy around Linux (but) we're pausing because we're trying to figure out what the implications of this are going to be". So, this begs the questions... What are the short term implications for the new Linux based desktop we've been hearing about from our fair weather friends? How will the SCO lawsuit affect Sun's long term strategy with Linux and Open Source?"

Rien writes "I saw this BusinessWeek article referenced over at MacSlash. The author makes the case for Apple utilizing the Bochs Open Source IA-32 (x86) PC emulator to help counter Microsoft's recent purchase of Virtual PC from Connectix." I looked at Bochs, and maybe I R Dum, but I couldn't figure out how to install Windows on it.

Albanach writes "In this article the Scotland on Sunday newspaper reports figures from the UK's National Criminal Intelligence Service which show 150 Britons were caught out by the Nigerian 419 scam and its variations in 2002, with a total loss of 8.4m GBP ($13.3m US)or around 57,000 GBP ($90,000 US) a head. "

Such_a_geek writes "Atari fans, do you remember playing Gunther Gebel Williams' Cage Cleaner, Typing Tutor, and Peabo Bryson's Cow Tipper on your 2600? How about playing the interactive Foghat 8-track while playing with your Pong action figures? Yeah, me neither. But thanks to this totally fake but quite convincing screenshots in this alternate history of 2600 games, I almost find myself remembering these things."

CleverNickName writes "Boing Boing pointed me to this 1974 review of the 'new' Dungeons and Dragons game. Some highlights: D&D was subtitled 'Rules for Fantastic Medieval Wargams Campaigns Playable with Paper and Pencil and Miniature Figures.' The reviewer concludes, 'In general, the concept and imagination involved is stunning. However, much more work, refinement, and especially regulation and simplification is necessary before the game is managable.'"

urbazewski asks: "If you could send a message back to your nerdy unpopular 12 year old self, what would you say? I've been asking this one for several years, and the replies sound suspiciously like the lame advice I got from adults at that age ('just be yourself, dear'). The most creative answer was from an American-born Buddhist monk, who didn't think his 12 year old self would listen to a message along the lines of 'Hey, what you're doing is kind of making things suck for me right now' --- he would send a message to himself by adding extra lyrics to a song he really liked when he was in junior high school. I got the best replies from a large class at UC Santa Cruz. The modal answer was 'Buy Microsoft.' About 7% of the class said 'Enjoy yourself in high school because college is really hard.' Another 7% said "Study harder in high school because college is really hard.' (The best variant on that theme: 'Try to figure out what "studying" is'). In the hindsight-is-20/20 dept. there was a girl who said 'Do not date the following people...' and then listed six names and a guy who said 'You know how you're thinking about trying to drive your dad's car? Don't!.' My personal favorite: 'You're a dork now, but don't worry, you'll be cool when you're in college.'"