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Power

Toshiba To Launch "Super Charge" Batteries 202

ozgood writes in to let us know about Toshiba's announcement that it has developed a new type of rechargeable battery dubbed the Super Charge ion Battery, or SCiB. Toshiba claims the new battery will mainly target the industrial market, though they hint the technology may eventually find a home in electric vehicles. The SCiB can recharge to 90% of total capacity in under five minutes, and has a life span of over 10 years. "Toshiba also says the battery has excellent safety with the new negative electrode material having a high level of thermal stability and a high flash point. The battery is also said to be structurally resistant to internal short-circuiting and thermal runaway."
Businesses

Submission + - Woz: Apple almost sold out to Commodore (itworld.com)

hoagiecat writes: At a panel where early computer innovators reminisced, Apple cofounder Steve Wozniak outlined an interesting scenario: he says that he and Steve Jobs tried to sell the prototype Apple II to Commodore. "Steve [Jobs] started saying all we want to do was offer [Apple II] for a few hundred thousand dollars, and we will get jobs at Commodore, we'll get some stock and we'll be in charge of running the program," Woz said. Instead, Commodore went out on its own with the C64, Jobs and Woz sold the Apple II themselves — and the rest is history...
Windows

Submission + - Antivirus: A waste of 50% of your HD throughput? (codinghorror.com)

dwalsh writes: Are we wasting our (Windows) computers performance on a placebo? Jeff Atwood seems to think so:

"The performance cost of virus scanning (lose 50% of disk performance, plus some percent of CPU speed) does not justify the benefit of a 33% detection rate and marginal protection."

"Ask yourself this: why don't Mac users run anti-virus software? Why don't UNIX users run anti-virus software? Because they don't need to. They don't run as administrators."

The article is a criticism of AV as a blacklist approach, that mostly protects against last months viruses. How many Slashdot Windows users rely solely on a firewall, a decent web browser, and good common sense (like Momma used to make it) when it comes to attachments?

Biotech

Journal Journal: Fat cells send message that aids insulin secretion

The body's fat cells help the pancreas do its job of secreting insulin, according to new research. This previously unrecognized process ultimately could lead to new methods to improve glucose metabolism in type 2 diabetic or insulin-resistant people. In a study using laboratory mice, published in the November 7, 2007 issue of Cell Metabolism, scientists at the Washington University School of Medicine report that fat cells releas
Television

The Fall Geek TV Lineup 318

An anonymous reader writes "Wired has an article looking at this Fall's bumper crop of geek TV. McG, who directed the pilot for the show Chuck, opines that the appearance of nerd culture on network television is a long-overdue reflection of real life. From the article: 'Hollywood, he said, is playing catch-up with IT culture. "The classic shape of the computer geek is over when Bill Gates became the (richest), most aspirational, coolest guy in the world," he said. "He is the original thick-glasses, pocket-protector guy. Now who doesn't want to be like Bill Gates?"' They have reviews of the lengthy list of shows, for clues as to what to watch and what to miss."
Education

MIT Student Arrested For Wearing 'Tech Art' Shirt At Airport 1547

SuperBanana writes "According to a report by the Boston Globe, MIT Student Star Simpson was nearly shot by Logan Airport police who thought she was armed with a bomb. She approached an airline employee wearing a prototyping board with electronic components, crudely attached to the front of her sweatshirt and holding 'putty' in her hand. She asked about an incoming flight, and did not respond when asked about the device. Armed police responded. 'Simpson was charged with possessing a hoax device and was arraigned today East Boston Municipal Court. She was held on $750 cash bail and ordered to return to court Oct. 29. "Thankfully because she followed our instructions, she ended up in our cell instead of a morgue," Pare said. "Again, this is a serious offense ... I'm shocked and appalled that somebody would wear this type of device to an airport."'"
The Internet

Web 2.0 Bubble May Be Worst Burst Yet 417

athloi writes with a link to an editorial by John Dvorak over at the PC Magazine site. Rather than his usual tilting at windmills, Dvorak turns his attention to possibility of another big internet economy 'pop': "Every single person working in the media today who experienced the dot-com bubble in 1999 to 2000 believes that we are going through the exact same process and can expect the exact same results — a bust. It's déjà vu all over again. Each succeeding bubble has been worse than its predecessor. Thus nobody is actually able to spot the cycle, since it just looks like a continuum. I can assure you that after this next collapse, nobody will think of the dot-com bubble as anything other than a prelude." It certainly seems like another burst is imminent; will this one be worse than the original, or have less of an impact?
United States

CS Programs Changing to Attract Women Students 596

Magnifico writes "The New York times is running an article about a push by American universities to actively recruit women into Computer Science courses. The story, 'Computer Science Takes Steps to Bring Women to the Fold', explains that the number of women in CS is shrinking: 'Women received about 38 percent of the computer science bachelor's degrees awarded in the United States in 1985, the peak year, but in 2003, the figure was only about 28 percent, according to the National Science Foundation.' One of the largest barriers to recruiting women to the field is the nerd factor. To attract women students to the CS field, 'Moving emphasis away from programming proficiency was a key to the success of programs Dr. Blum and her colleagues at Carnegie Mellon instituted to draw more women into computer science.' Changes at CMU increased women students in the CS program from 8 percent to nearly 40 percent."
Data Storage

Building Brainlike Computers 251

newtronic clues us to an article in IEEE Spectrum by Jeff Hawkins (founder of Palm Computing), titled Why can't a computer be more like a brain? Hawkins brings us up to date with his latest endeavor, Numenta. He covers progress since his book On Intelligence and gives details on Hierarchical Temporal Memory (HTM), which is a platform for simulating neocortical activity. Programming HTMs is different — you essentially feed them sensory data. Numenta has created a framework and tools, free in a "research release," that allow anyone to build and program HTMs.
Games

Overcoming Challenges To Game 30

1up has another feature up worth investigating, this one detailing the challenges faced by gamers with disabilities who just want to enjoy their hobby. The article discusses gals and guys who may be physically different than the average gamer, but who seek that Mortal Kombat fatality or enjoy the story of Half-Life 2 just as much as anyone else. They also touch on the unique peripherals available to players who may not be able to utilize standard controllers, and the palliative effect that games can have on folks in stressful circumstances (as we've seen via Child's Play in the past). It's just another instance where the usual gaming labels break down in the face of reality: "In the media's rush to blame school shootings on violent videogames, sometimes stories about gaming's role in communication and positive tenacity get left behind. While some parents worry about their children submerging themselves in the fantasy worlds of videogames and losing themselves to the real world, that same 'escape' often proves soothing to gamers who, for various reasons, are cut off to the world around them."
Biotech

Are TV Pharmaceutical Ads Damaging? 383

trivialscene asks: "ABC News is carrying an article about a recently published study in the medical research journal Annals of Family Medicine which examined prime time television ads run by pharmaceutical companies. The researchers concluded that the generally ambiguous ads, which appeal almost entirely to emotion rather than fact, tend to confuse viewers. They also suggest that the ads may be creating problems at the doctor's office, as some people might become convinced they need a particular medication and insist on getting it, rather than leaving the decision to trained medical professionals. What do you think about the presence of drug advertisements on television?"
Power

Submission + - Wind power not always green

MattSparkes writes: "If wind turbines are planned carefully then they are a fantastic way to produce clean power, but if they are built without thinking then they may be more a part of the problem than the solution. When digging foundations for a turbine, a landslide was triggered, "That night almost half a square kilometre of bog slid 2.5 kilometres down the hillside, engulfing an unoccupied farmhouse and blocking two roads."."
Software

Submission + - Your guide to Mastering Ajax on Rails

Brian DeLacey writes: "Book Review Title: Your guide to mastering Ajax on Rails

Ajax on Rails, by Scott Raymond
336 pages, O'Reilly Media (Published, January 3, 2007)

Scott Raymond's book "Ajax on Rails" was published in January and is a timely guide for interactive web development using Ajax and Rails. The book starts with the basics, transitions to intermediate techniques, and finishes with a flourish of full source to three life-sized Rails applications using Ajax. (The sample applications can be downloaded from the publisher's site at http://www.oreilly.com/catalog/9780596527440/#.) This book is worth a look for novices and experts.

The author writes that Ajax is "a really simple idea: web pages, already loaded in a browser, can talk with the server and potentially change themselves as a result." [p. 2] He then leads you beyond the mystery of Ajax to reveal why "Ajax on Rails" is such a powerful approach to building fun, effective, and highly interactive web applications.

One of the real strengths of this book is its many easy-to-follow examples. I found even tricky techniques described clearly. I typed in code samples as I read and found it to be highly accurate. Having a working Rails installation is key for getting the most out of the book. All the software you'll need to get going is freely available on the net.

The centerpiece of the book is Chapter 5, "RJS" (also known as Ruby-generated Javascript.) A number of more advanced technical topics, often overlooked, are also covered: `Usability', 'Testing and Debugging', 'Performance' and 'Security'.

The author does an elegant job taking the reader from simple code snippets to more complex applications. I applied what I was learning to my own Rails project as I read along. The book is the right size: it won't break your bookshelf at just over 300 pages. (The book could be even better if it left out some of the details of Prototype and script.aculo.us, which could be easily referred to on the web.)

"Ajax on Rails" was a joy to read and work through. The title nails the topic: this is a defining text. The material is clearly organized. The writing moves at a great pace. You can't beat the sample code. (I expect I'll be referring back to it in the future.) This book is a terrific tool for mastering two phenomenal web developments — Ajax and Rails. The author's website, http://scottraymond.net/, provides more background and adds supporting, up-dated information and is worth visiting.

Reviewer Brian DeLacey, founder of the "Greater Boston Ruby and Rails Group" (www.greaterbostonrubyandrails.com)

[EDITORS, PLEASE NOTE — The following information is for your background and not for publication.]

Full Disclosure: "Greater Boston Ruby and Rails Group" is recognized as a user group by O'Reilly Media, the publisher of Ajax on Rails.

DeLacey has published or co-authored works related to information systems, industry standards, innovation, and open source (e.g. http://blog.hitachixbrl.com/2007/01/23/open-source -and-xbrl/ ) DeLacey worked in software at Lotus Development for 13 years and research at the Harvard Business School for eight years.

The reviewer believes an important part of adopting important, new, innovative technologies is getting the word out and providing supporting educational materials. Great books do that. As a result, the reviewer decided to write some reviews in support of his enthusiasm for Ruby, Rails and related technologies, including open source.

A substantially different version of this review may appear elsewhere:

http://www.oreillynet.com/cs/catalog/view/cs_msg/8 8674
http://www.amazon.com/Ajax-Rails-Scott-Raymond/dp/ 0596527446
http://amapedia.amazon.com/view/Ajax+on+Rails/id=1 45492

Email: bdelacey@gmail.com"
Media

AACS Hack Blamed on Bad Player Implementation 272

seriouslywtf writes "The AACS LA, those responsible for the AACS protection used by HD DVD and Blu-ray, has issued a statement claiming that AACS has not been compromised. Instead, they blame the implementation of AACS on specific players and claim that the makers of those players should follow the Compliance and Robustness Rules. 'It's not us, it's them!' This, however, does not appear to be the entire truth. From the Ars Technica article: 'This is an curious accusation because, according to the AACS documentation reviewed by Ars Technica, the AACS specification does not, in fact, account for this attack vector. ... We believe the AACS LA may be able to stop this particular hack. While little is truly known about how effective the key revocation system in AACS is, in theory it should be possible for the AACS LA to identify the players responsible for the breach and prevent later pressings of discs from playing back on those players until they are updated. As such, if the hole can be patched in the players, the leak of volume keys could be limited to essentially what is already on the market. That is, until another hole is found.'"

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