Magnetic Transistor Could Cut Power Consumption and Make Chips Reprogrammable

ananyo writes “Transistors, the simple switches at the heart of all modern electronics, generally use a tiny voltage to toggle between ‘on’ and ‘off.’ The voltage approach is highly reliable and easy to miniaturize, but has its disadvantages. First, keeping the voltage on requires power, which drives up the energy consumption of the microchip. Second, transistors must be hard-wired into the chips and can’t be reconfigured, which means computers need dedicated circuitry for all their functions. Now, researchers have made a type of transistor that can be switched with magnetism. The device could cut the power consumption of computers, cell phones and other electronics — and allow chips themselves to be ‘reprogrammed” (abstract).” Read more of this story at Slashdot.

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Magnetic Transistor Could Cut Power Consumption and Make Chips Reprogrammable

San Diego Drops Red-Light Cameras

gannebraemorr writes “U-T San Diego reports that the city has become ‘the latest in a cadre of California cities turning their backs on red-light cameras — aloof intersection sentries that have prompted $490 tickets to be mailed to 20,000 motorists per year’ there. ‘Mayor Bob Filner announced his decision to take down the city’s 21 cameras at a news conference set at the most prolific intersection for the tickets, North Harbor Drive and West Grape Street, near San Diego International Airport. A crew went to work immediately taking down “photo enforced” signs throughout the city. “Seems to me that such a program can only be justified if there are demonstrable facts that prove that they raise the safety awareness and decrease accidents in our city,” Filner said of the cameras. “The data, in fact, does not really prove it.”‘ I have to say I’m a bit surprised that my city is voluntarily shedding potentially $9.8M in revenue after objectively evaluating a program. I wonder how much a system would cost that could switch my light from green to red if it detected a vehicle approaching from a red-lit direction at dangerous speeds. Can you think of an other alternative uses for these cameras?” Read more of this story at Slashdot.

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San Diego Drops Red-Light Cameras

Dozens Suspended In Harvard University Cheat Scandal

johnsnails writes “Around 60 students at Harvard University have been suspended and others disciplined in a mass cheating scandal at the elite college, the campus newspaper reports. The Harvard Crimson quoted an email from Faculty of Arts and Sciences dean Michael Smith that said more than half of the cases heard by administrators in the scandal, which erupted last year, had resulted in suspension orders. ‘After professor Matthew B. Platt reported suspicious similarities on a handful of take-home exams in his spring course Government 1310: “Introduction to Congress,” the College launched an investigation that eventually expanded to involve almost half of the 279 students enrolled in the course.'” Read more of this story at Slashdot.

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Dozens Suspended In Harvard University Cheat Scandal

Dial-up handshaking illustrated

Oona Räisänen has written a thorough and engrossing article about the noises emitted by dial-up modems while they connect and handshake, and the accompanying graphic (ZOMG HUGE) is nothing short of spectacular. It would make a great full-size poster — maybe a framed art-print. Now the modems must address the problem of echo suppression. When humans talk, only one of them is usually talking while the other one listens. The telephone network exploits this fact and temporarily silences the return channel to suppress any confusing echoes of the talker’s own voice. Modems don’t like this at all, as they can very well talk at the same time (it’s called full-duplex). The answering modem now puts on a special answer tone that will disable any echo suppression circuits on the line. The tone also has periodic “snaps” (180° phase transitions) that aim to disable yet another type of circuit called echo canceller. Now the modems will list their supported modulation modes and try to find one that both know. They also probe the line with test tones to see how it responds to tones of different frequencies, and how much it attenuates the signal. They exchange their test results and decide a speed that is suitable for the line. After this, the modems will go to scrambled data. They put their data through a special scrambling formula before transmission to make its power distribution more even and to make sure there are no patterns that are suboptimal for transfer. They listen to each other sending a series of binary 1’s and adjust their equalizers to optimally shape the incoming signal. The sound of the dialup, pictured ( via JWZ )

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Dial-up handshaking illustrated

These natural formations look like alien ruins

These columns are found in Varna, Bulgaria. They’re hollowed out and filled with sand, almost perfectly round, and grouped together. And they’re 100 percent natural formations. Sometimes even prehistory is in on the conspiracy to make us believe that we’ve discovered evidence of alien visitors. More »

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These natural formations look like alien ruins

WSJ: Yes, Sony Will Announce the PlayStation 4 on February 20th

The WSJ is confirming what we all saw in Sony’s slick video teaser for its upcoming February 20th event: Sony will be announcing the PlayStation 4. Citing the ol’ reliable ‘people familiar with the matter’, the WSJ says that the PS4 will be announced on February 20th and be released later this year. More »

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WSJ: Yes, Sony Will Announce the PlayStation 4 on February 20th

The Cancer Death Rate is Down 20%

Death rates from cancer have gone down 20% since 1991, according to data in a new study published this month. This does not mean that fewer people are developing cancer, nor does it even mean that fewer people are dying of it — it just means that, year by year, fewer people are dying of the disease. Possible reasons for the shift include better therapies, and earlier diagnosis. In the chart above, and the one below (click to enlarge), you can also see over the past twenty-two years that certain cancers are killing more people — and certain ones are killing fewer. More »

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The Cancer Death Rate is Down 20%

CES tells CNET: You’re fired!

At the 2013 CES convention, CNET’s editorial staff loved the Dish Hopper DVR and nominated it “Best in Show.” That journalistic decision was quickly tossed out, however, by the legal department at CBS, CNET’s corporate parent. CBS is involved in litigation against Dish over the Hopper. The censoring of CNET’s decision has produced a fair bit of fallout for CBS already. The company has been criticized in many quarters for silencing its journalists. Greg Sandoval, a well-known writer for CNET, even left the company, saying he was concerned that his employer didn’t respect editorial independence. Now, CES itself has put out a press release slamming CNET’s behavior and announcing that CNET won’t be allowed to produce the “Best of CES” awards anymore. Those awards are produced by CNET under contract with the Consumer Electronics Association (CEA), which puts on CES. CEA said it will work to identify a new partner to run the Best of CES awards. Read 4 remaining paragraphs | Comments

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CES tells CNET: You’re fired!

Duncan Jones will direct a World of Warcraft movie starring Johnny Depp

The long awaited World of Warcraft movie is finally moving forward, and with a director that is both exciting and surprising. Duncan Jones of Moon and Source Cod e fame has snapped up the directing gig. Originally helmed by Sam Raimi, the project was dropped by the Evil Dead director so he could concentrate on his Oz movie. Honestly, we thought this project was long dead, but Jones and Warner Bros. are planning on starting production on the movie adaptation of the role-playing game in 2013! More »

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Duncan Jones will direct a World of Warcraft movie starring Johnny Depp